A163997 Primes with an even number of partitions.

2, 11, 19, 31, 47, 59, 79, 97, 101, 103, 109, 113, 131, 137, 149, 151, 163, 167, 179, 191, 197, 227, 241, 271, 307, 317, 337, 347, 353, 359, 379, 383, 397, 409, 419, 431, 439, 449, 487, 503, 509, 521, 523, 541, 557, 563, 569, 571, 577, 599, 607, 631, 641, 643

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Example

11 is in the sequence because the number of partitions of 11 is equal to 56 and 56 is an even number.

Mathematica

Select[Prime[Range[200]], EvenQ[PartitionsP[#]]&] (* Harvey P. Dale, Jul 01 2019 *)

Crossrefs

Cf. A000040, A000041, A001560, A163096, A163998.

Sequence in context: A112860 A152312 A154765 * A067931 A186267 A067660

Adjacent sequences: A163994 A163995 A163996 * A163998 A163999 A164000

Keyword

nonn

Author

Omar E. Pol, Aug 09 2009

Extensions

More terms from Sean A. Irvine, Oct 18 2009

Status

approved