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A061411 m.2^n-1 is not prime for all coefficients m in the range 0<=m<=n. 1
1, 22, 24, 65, 110, 112, 135, 137, 166, 167, 218, 219, 220, 228, 229, 239, 257, 280, 310, 344, 345, 346, 398, 399, 403, 404, 405, 430, 439, 440, 475, 494, 504, 505, 508, 522, 524, 534, 535, 536, 557, 559, 592, 619, 620, 624, 625, 626, 679, 703, 705, 706 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..51.

CROSSREFS

Cf. A061410-A061415.

Sequence in context: A138603 A181454 A155911 * A053779 A177734 A177055

Adjacent sequences:  A061408 A061409 A061410 * A061412 A061413 A061414

KEYWORD

nonn

AUTHOR

Patrick De Geest, May 15 2001.

STATUS

approved

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Last modified October 22 22:34 EDT 2019. Contains 328335 sequences. (Running on oeis4.)