A061414 - OEIS

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A061414

Numbers k such that m*2^k - 1 is prime for exactly one coefficient m in the range 0 <= m <= k.

8, 9, 19, 23, 25, 26, 34, 39, 58, 64, 66, 68, 82, 83, 84, 86, 108, 109, 117, 118, 128, 129, 130, 134, 136, 150, 151, 175, 176, 178, 179, 194, 197, 227, 231, 234, 240, 241, 248, 258, 259, 275, 276, 278, 281, 309, 315, 316, 317, 330, 331, 332, 336, 337, 339, 340

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OFFSET

1,1

COMMENTS

For corresponding coefficient values see A061415.

LINKS

Table of n, a(n) for n=1..56.

CROSSREFS

Cf. A061410, A061411, A061412, A061413, A061415.

Sequence in context: A067544 A022313 A120311 * A240915 A281225 A071869

Adjacent sequences: A061411 A061412 A061413 * A061415 A061416 A061417

KEYWORD

nonn

AUTHOR

Patrick De Geest, May 15 2001

EXTENSIONS

Name edited and offset changed by Jon E. Schoenfield, Oct 26 2019

STATUS

approved