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A205237 Numbers k such that, for the least prime p > 3, 2^n + p*2^k - 1 is prime with n/3 < k < n+1 and k the least if more than one solution. 4
1, 1, 3, 2, 3, 3, 3, 3, 7, 4, 5, 5, 7, 6, 9, 6, 7, 7, 13, 7, 9, 13, 17, 14, 19, 12, 11, 10, 21, 13, 15, 20, 15, 15, 15, 14, 15, 26, 21, 19, 15, 18, 21, 18, 31, 19, 22, 23, 27, 31, 27, 34, 21, 26, 21, 32, 27, 39, 25, 22, 32, 27, 25, 46, 43, 29, 61, 23, 29, 25 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Pierre CAMI, Table of n, a(n) for n = 1..10800

PROG

See A205236.

CROSSREFS

Cf. A205236.

Sequence in context: A098726 A065801 A265705 * A086920 A182021 A117451

Adjacent sequences:  A205234 A205235 A205236 * A205238 A205239 A205240

KEYWORD

nonn

AUTHOR

Pierre CAMI, Jan 24 2012

STATUS

approved

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Last modified September 26 11:22 EDT 2021. Contains 347665 sequences. (Running on oeis4.)