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A132192 Least number k such that 4*(k*(2^p-1))^2 + 1 is prime where 2^p-1 is a Mersenne prime (p in A000043). 0
1, 1, 4, 3, 10, 7, 16, 36, 45, 3, 136, 45, 564, 19, 350, 1201, 197, 3547, 2020, 870, 2322, 4488 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..22.

CROSSREFS

Cf. A000043.

Sequence in context: A107381 A242531 A275160 * A147756 A213768 A075563

Adjacent sequences:  A132189 A132190 A132191 * A132193 A132194 A132195

KEYWORD

more,nonn

AUTHOR

Pierre CAMI, Nov 05 2007

STATUS

approved

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Last modified April 20 22:22 EDT 2019. Contains 322310 sequences. (Running on oeis4.)