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A255345 Numbers n such that 90n + 31 is a Mersenne prime. 0
0, 1456, 6877444662696557082772912, 76275529557006774610910008878682146858549281112703393437716260657617146482196178356917329340682828388636625682127565089301355422219073820139711425456833968 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Always an even number. Aside from the first term, appears to always have a last digit of 2, 4, 6 or 8. n for M3, M6, M10 and M13 are represented here, while n for M19, M21, M22 are too large for this list.

LINKS

Table of n, a(n) for n=1..4.

CROSSREFS

Cf. A000668. Subsequence of A201819. Shares at least one term (0) with A224856.

Sequence in context: A203393 A235771 A235554 * A091715 A224528 A206147

Adjacent sequences:  A255342 A255343 A255344 * A255346 A255347 A255348

KEYWORD

nonn

AUTHOR

J. W. Helkenberg, Feb 21 2015

STATUS

approved

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Last modified January 21 22:19 EST 2021. Contains 340355 sequences. (Running on oeis4.)