A061413 - OEIS

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A061413

Coefficient values m resulting from A061412.

4

1, 1, 2, 1, 3, 3, 11, 20, 10, 7, 3, 18, 12, 6, 27, 29, 54, 27, 23, 39, 39, 75, 77, 57, 86, 37, 105, 93, 74, 15, 112, 7, 81, 72, 111, 62, 31, 58, 130, 65, 117, 72, 18, 75, 56, 28, 112, 56, 28, 83, 149, 133, 163, 192, 96, 48, 73, 110, 55, 150, 75, 186, 83, 148, 65, 68, 150

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OFFSET

1,3

LINKS

Table of n, a(n) for n=1..67.

EXAMPLE

a(3) = 2 since 2*2^A061412(3) + 1 = 2*2^3 + 1 = 17 is prime.

a(7) = 11 since 11*2^A061412(7) + 1 = 11*2^21 + 1 = 23068673 is prime.

CROSSREFS

Cf. A061410-A061415.

Sequence in context: A246174 A176054 A257703 * A286385 A074743 A181642

Adjacent sequences: A061410 A061411 A061412 * A061414 A061415 A061416

KEYWORD

nonn

AUTHOR

Patrick De Geest, May 15 2001

EXTENSIONS

Offset changed by Andrew Howroyd, Aug 13 2024

STATUS

approved