A205237 - OEIS

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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.

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 A370231

Adjacent sequences: A205234 A205235 A205236 * A205238 A205239 A205240

KEYWORD

nonn

AUTHOR

Pierre CAMI, Jan 24 2012

STATUS

approved