A297415 Numbers k such that A019320(k) is in A217465.

25, 36, 52, 92, 124, 306, 361, 630, 656, 1648, 1780, 2508, 3300, 3540, 5728, 6260, 6450, 7500, 10820, 12656, 14076, 14132, 18836, 20960, 23456, 24272, 35280, 43136

Offset

1,1

Links

Table of n, a(n) for n=1..28.

Prog

(PARI) is_A297415(n) = my(m=polcyclo(n, 2)); (m>1) && Mod(2, m*(m+1))^m==2 && !ispseudoprime(m);

Crossrefs

Cf. A019320, A217465, A297412.

Set difference of A297414 and ({1} U A072226).

Sequence in context: A264906 A263095 A077502 * A346526 A282550 A265505

Adjacent sequences: A297412 A297413 A297414 * A297416 A297417 A297418

Keyword

nonn,more

Author

Max Alekseyev, Dec 29 2017

Status

approved