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A278568 Twice odd prime powers. 4
2, 6, 10, 14, 18, 22, 26, 34, 38, 46, 50, 54, 58, 62, 74, 82, 86, 94, 98, 106, 118, 122, 134, 142, 146, 158, 162, 166, 178, 194, 202, 206, 214, 218, 226, 242, 250, 254, 262, 274, 278, 298, 302, 314, 326, 334, 338, 346, 358, 362, 382, 386, 394, 398, 422, 446, 454, 458, 466, 478 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..60.

L. J. Corwin, Irreducible polynomials over the integers which factor mod p for every p, Unpublished Bell Labs Memo, Sep 07 1967 [Annotated scanned copy]

CROSSREFS

Twice A061345.

Sequence in context: A103747 A290490 A182991 * A250198 A260084 A194282

Adjacent sequences:  A278565 A278566 A278567 * A278569 A278570 A278571

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Nov 26 2016

STATUS

approved

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Last modified February 23 02:29 EST 2019. Contains 320411 sequences. (Running on oeis4.)