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A297414 Numbers k such that 2^m == 2 (mod m*(m+1)), where m = A019320(k). 2
1, 4, 9, 12, 25, 36, 40, 52, 80, 92, 124, 150, 208, 306, 361, 630, 656, 1648, 1780, 2508, 3300, 3540, 5728, 6260, 6450, 7500, 10820, 12656, 14076, 14132, 18836, 20960, 23456, 24272, 35280, 43136 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Also, numbers k such that A019320(k) belongs to A216822.

LINKS

Table of n, a(n) for n=1..36.

PROG

(PARI) is_A297414(k) = my(m=polcyclo(k, 2)); Mod(2, m*(m+1))^m==2;

CROSSREFS

Cf. A019320, A216822, A297413, A297415.

Sequence in context: A212875 A069082 A344415 * A076794 A254520 A344578

Adjacent sequences:  A297411 A297412 A297413 * A297415 A297416 A297417

KEYWORD

nonn

AUTHOR

Max Alekseyev, Dec 29 2017

STATUS

approved

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Last modified January 20 06:36 EST 2022. Contains 350467 sequences. (Running on oeis4.)