A250397 Differences between A250396 and A104080.

0, 0, 0, 2, 0, 0, 0, 12, 2, 30, 0, 0, 10, 10, 0, 2, 112, 0, 0, 6, 42, 52, 2, 0, 0, 54, 16, 0, 96, 0, 0, 46, 12, 60, 0, 84, 260, 6, 22, 126, 0, 60, 112, 14, 16, 124, 136, 40, 0, 150, 0, 0, 70, 4, 0, 282, 26, 144, 0, 114, 182, 52, 70, 0, 0, 76, 0, 28, 88, 42

Offset

1,4

Links

Andrew Howroyd, Table of n, a(n) for n = 1..300

Formula

a(n) = A250396(n) - A104080(n).

Prog

(PARI) a(n) = {my(q=nextprime(2^n+1), p=q); while(znorder(Mod(2, p))!=p-1, p=nextprime(p+1)); p - q} \\ Andrew Howroyd, Dec 03 2025

Crossrefs

Cf. A250396, A104080.

Sequence in context: A287466 A288014 A179677 * A348029 A224074 A136615

Adjacent sequences: A250394 A250395 A250396 * A250398 A250399 A250400

Keyword

nonn

Author

Morgan L. Owens, Nov 21 2014

Extensions

a(51) onward from Andrew Howroyd, Dec 03 2025

Status

approved