Уф! Подготовка к конкурсу в поддержку
проекта началась.
Сочиняла полдня описание.
ice00 ответил, что всё понял и берёт две недели на создание программного обеспечения конкурса.
Что и как у нас получится, пока трудно сказать.
А пока представлю определения, необходимые для решения конкурсных задач. После определений идёт описание самих задач, их три.
Definition 1A prime k-tuple is a finite collection of values (

),
где

are prime numbers, (

) are pattern. Typically the first value in the pattern is 0 and the rest are distinct positive even numbers. [1]
We consider the k-tuple, where

are consecutive primes.
Definition 2k-tuple (

) for

even, is called symmetric, if the following condition is satisfied:

Example
symmetric 8-tuple
Код:
(17 + 0, 17 + 2, 17 + 6, 17 + 12, 17 + 14, 17 + 20, 17 + 24, 17 + 26)
Shortened we write this:
Код:
17: 0, 2, 6, 12, 14, 20, 24, 26
Definition 3k-tuple (

) for

odd called symmetric, if the following condition is satisfied:

Example
symmetric 5-tuple
Код:
18713: 0, 6, 18, 30, 36
Definition 4The diameter

of k-tuple is the difference of its largest and smallest elements. [1]
Example
8-tuple
Код:
17: 0, 2, 6, 12, 14, 20, 24, 26
it has a diameter

.
Definition 5A pandiagonal magic square is a magic square with the additional property that the broken diagonals, i.e. the diagonals that wrap round at the edges of the square, also add up to the magic constant. [2]
Ссылки даны в конце описания.