login
Primes with an even number of partitions.
4

%I #14 Jul 01 2019 17:09:23

%S 2,11,19,31,47,59,79,97,101,103,109,113,131,137,149,151,163,167,179,

%T 191,197,227,241,271,307,317,337,347,353,359,379,383,397,409,419,431,

%U 439,449,487,503,509,521,523,541,557,563,569,571,577,599,607,631,641,643

%N Primes with an even number of partitions.

%H Harvey P. Dale, <a href="/A163997/b163997.txt">Table of n, a(n) for n = 1..1000</a>

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

%t Select[Prime[Range[200]],EvenQ[PartitionsP[#]]&] (* _Harvey P. Dale_, Jul 01 2019 *)

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

%K nonn

%O 1,1

%A _Omar E. Pol_, Aug 09 2009

%E More terms from _Sean A. Irvine_, Oct 18 2009