A166155 - OEIS

A166155

Numbers n such that number of divisors of n + number of perfect partitions of (n-1) is prime.

1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 13, 14, 15, 16, 17, 19, 21, 22, 23, 25, 26, 29, 31, 33, 34, 35, 37, 38, 39, 41, 43, 46, 47, 49, 51, 53, 55, 57, 58, 59, 61, 62, 65, 67, 69, 71, 73, 74, 77, 79, 81, 82, 83, 85, 86, 87, 89, 91, 93, 94, 95, 97, 101, 103, 106, 107, 109, 111, 113, 115, 118, 119

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OFFSET

1,2

COMMENTS

Numbers n such that A000005(n) + A002033(n-1) is prime.

LINKS

Table of n, a(n) for n=1..72.

CROSSREFS

Cf. A000005, A000040, A002033.

Sequence in context: A361634 A210490 A340682 * A381991 A394994 A392698

Adjacent sequences: A166152 A166153 A166154 * A166156 A166157 A166158

KEYWORD

nonn,less

AUTHOR

Juri-Stepan Gerasimov, Oct 08 2009

EXTENSIONS

Definition and examples corrected, duplicate of 49 removed, 64 removed - R. J. Mathar, Oct 09 2009

STATUS

approved