но при больших значениях
и
это может не помочь.
так и есть, нашёл контрпример:
(код на Pari/GP)
? {a=[0];
b=[0];
c=6;
k=0;
d=[0];
for(i=1, (prod(i=1,c,prime(i)))+3, if(Mod(i, 3)==0||Mod(i,5)==0||Mod(i,7)==0||Mod(i,11)==0||Mod(i,13)==0, a=concat(a,i) ) );
for(i=1, #a, if(Mod(a[i],2)!=0, b=concat(b, a[i]) )); for(i=1,#b-1, if(b[i+1]-b[i]==2, k=k+1, d=concat(d, k);k=0)); print(d)
}
[0, 0, 6, 0, 1, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 2, 0, 0, 0, 5, 0, 1, 3, 1, 1, 0, 1, 1, 3, 0, 4, 4, 0, 0, 1, 3, 1, 1, 1, 1, 0, 1, 0, 5, 0, 0, 1, 2, 1, 3, 0, 1, 1, 1, 1, 0, 1, 1, 0, 2, 3, 3, 0, 0, 1, 2, 0, 0, 4, 2, 0, 1, 0, 1, 4, 0, 4, 1, 0, 1, 1, 1, 1, 3, 0, 1, 1, 1, 0, 3, 3, 0, 1, 1, 1, 1, 0, 1, 2, 1, 0, 1, 0, 1, 2, 0, 1, 0, 2, 1, 0, 2, 0, 1, 2, 3, 3, 1, 0, 0, 3, 3, 0, 0, 5, 0, 0, 1, 1, 1, 0, 2, 3, 2, 0, 0, 1, 2, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 3, 0, 3, 3, 1, 0, 2, 1, 0, 0, 1, 1, 2, 0, 1, 3, 2, 0, 1, 0, 2, 3, 1, 0, 2, 1, 1, 0, 0, 1, 1, 0, 1, 3, 4, 0, 0, 1, 1, 0, 0, 4, 1, 1, 3, 1, 2, 0, 0, 0, 2, 1, 4, 0, 1, 4, 0, 0, 1, 2, 0, 0, 4, 3, 0, 0, 1, 3, 0, 1, 2, 1, 0, 1, 0, 1, 2, 0, 1, 0, 2, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 2, 1, 0, 3, 3, 0, 3, 1, 0, 3, 1, 1, 0, 1, 0, 1, 2, 1, 0, 4, 3, 1, 0, 1, 4, 0, 0, 2, 1, 0, 0, 3, 3, 1, 0, 1, 1, 0, 3, 1, 1, 0, 4, 1, 2, 1, 0, 0, 2, 1, 0, 1, 0, 1, 2, 1, 1, 0, 1, 1, 0, 0, 3, 4, 0, 4, 1, 0, 0, 1, 1, 4, 1, 0, 7, 0, 0, 2, 1, 0, 1, 0, 2, 1, 1, 0, 0, 1, 1, 0, 0, 4, 4, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 2, 0, 0, 0, 5, 0, 1, 3, 1, 1, 0, 3, 3, 0, 5, 3, 0, 0, 1, 1, 3, 1, 1, 3, 1, 0, 1, 2, 0, 0, 1, 2, 1, 3, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 3, 3, 1, 0, 1, 2, 0, 0, 4, 1, 0, 1, 0, 1, 4, 0, 0, 2, 1, 0, 1, 3, 1, 3, 1, 1, 1, 0, 0, 3, 4, 0, 1, 1, 4, 0, 1, 1, 1, 0, 1, 0, 5, 0, 1, 0, 2, 1, 0, 1, 0, 1, 2, 1, 1, 3, 1, 0, 1, 3, 3, 0, 0, 2, 1, 0, 0, 1, 1, 2, 0, 2, 0, 1, 2, 0, 0, 4, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 3, 3, 1, 0, 1, 1, 0, 0, 1, 5, 0, 1, 3, 2, 0, 0, 0, 2, 3, 2, 0, 2, 1, 3, 0, 1, 1, 0, 1, 3, 3, 0, 0, 1, 2, 0, 0, 1, 1, 1, 1, 1, 3, 2, 0, 0, 1, 2, 1, 0, 2, 0, 1, 1, 1, 0, 0, 1, 4, 0, 3, 3, 0, 0, 2, 3, 0, 1, 2, 1, 0, 1, 0, 1, 2, 0, 2, 0, 2, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 3, 4, 0, 0, 1, 1, 0, 6, 1, 0, 3, 1, 2, 0, 0, 4, 1, 3, 0, 1, 4, 0, 0, 2, 1, 0, 0, 4, 3, 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 3, 1, 2, 3, 0, 2, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 2, 0, 0, 3, 4, 0, 3, 1, 0, 0, 1, 1, 3, 1, 0, 5, 1, 0, 0, 2, 3, 1, 0, 1, 1, 1, 0, 0, 2, 1, 0, 0, 4, 4, 0, 0, 1, 1, 0, 3, 1, 1, 0, 2, 0, 1, 2, 0, 0, 0, 5, 0, 1, 3, 2, 1, 0, 0, 1, 3, 0, 4, 3, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 4, 0, 1, 2, 1, 3, 0, 2, 1, 1, 0, 0, 1, 1, 0, 1, 3, 3, 1, 0, 1, 2, 0, 1, 4, 1, 0, 1, 0, 1, 4, 0, 0, 5, 0, 1, 0, 1, 1, 3, 3, 1, 0, 0, 4, 3, 0, 1, 1, 1, 1, 0, 1, 1, 3, 1, 0, 1, 2, 0, 1, 0, 2, 1, 0, 1, 0, 1, 2, 1, 0, 3, 1, 0, 1, 3, 3, 1, 0, 2, 1, 0, 0, 1, 1, 1, 0, 2, 0, 1, 2, 0, 0, 0, 2, 1, 0, 1, 4, 1, 1, 0, 1, 1, 1, 0, 0, 3, 4, 1, 0, 1, 3, 0, 1, 1, 2, 0, 1, 7, 0, 0, 0, 2, 3, 1, 0, 2, 1, 1, 1, 0, 1, 1, 0, 1, 3, 3, 0, 0, 1, 1, 0, 0, 1, 1, 2, 1, 1, 0, 1, 2, 0, 0, 4, 1, 0, 4, 1, 1, 1, 0, 0, 1, 2, 1, 0, 3, 3, 0, 0, 1, 3, 0, 1, 2, 1, 0, 1, 0, 1, 2, 0, 1, 0, 2, 1, 0, 2, 0, 1, 1, 3, 1, 1, 1, 1, 0, 3, 3, 0, 0, 1, 2, 0, 3, 1, 1, 0, 1, 3, 2, 0, 0, 5, 1, 0, 1, 0, 1, 4, 0, 0, 2, 3, 0, 3, 3, 1, 0, 2, 1, 0, 0, 1, 1, 1, 0, 3, 1, 2, 1, 1, 0, 2, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 3, 4, 0, 3, 1, 0, 0, 4, 3, 3, 5, 0, 0, 0, 2, 1, 3, 0, 1, 4, 0, 0, 1, 1, 0, 0, 5, 4, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 2, 0, 1, 0, 5, 0, 1, 3, 1, 1, 0, 0, 1, 4, 0, 4, 3, 0, 3, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 2, 1, 0, 1, 2, 6, 0, 1, 1, 1, 0, 0, 2, 1, 0, 1, 3, 3, 0, 0, 1, 2, 0, 6, 1, 0, 2, 0, 1, 4, 0, 0, 2, 1, 0, 1, 0, 1, 2, 3, 0, 1, 1, 0, 0, 3, 3, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 4, 1, 0, 2, 1, 0, 1, 0, 5, 1, 0, 3, 1, 0, 0, 3, 3, 1, 0, 2, 1, 0, 1, 1, 1, 1, 0, 2, 0, 1, 2, 0, 0, 0, 5, 0, 1, 1, 1, 1, 1, 0, 3, 1, 0, 0, 4, 3, 1, 0, 1, 1, 1, 0, 1, 1, 4, 1, 3, 2, 0, 0, 0, 2, 3, 1, 0, 2, 1, 1, 0, 0, 1, 1, 0, 2, 3, 3, 1, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 2, 0, 0, 0, 2, 1, 0, 2, 3, 1, 1, 0, 1, 1, 2, 0, 0, 3, 4, 0, 0, 1, 3, 0, 1, 2, 1, 0, 1, 0, 5, 0, 1, 0, 2, 1, 0, 1, 0, 1, 1, 1, 3, 1, 1, 3, 3, 3, 0, 0, 1, 1, 0, 3, 1, 2, 0, 1, 0, 1, 2, 0, 0, 4, 1, 0, 1, 1, 1, 4, 0, 0, 2, 1, 1, 0, 3, 3, 1, 0, 1, 1, 0, 0, 1, 2, 1, 0, 3, 1, 2, 1, 0, 0, 2, 1, 0, 2, 0, 1, 1, 4, 0, 1, 1, 0, 0, 3, 4, 0, 3, 2, 0, 0, 1, 1, 3, 1, 7, 0, 0, 1, 2, 1, 0, 1, 0, 1, 1, 1, 0, 0, 1, 3, 0, 4, 4, 0, 0, 2, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 2, 0, 1, 0, 5, 0, 1, 3, 1, 1, 0, 0, 1, 3, 0, 9,
последнее число 9 - это количество последовательных нечётных чисел. А по гипотезе не должно было превышать 7-ми последовательных нечётных чисел.