A217725 Numbers n such that 5n is a partition number.

1, 3, 6, 27, 77, 98, 251, 315, 602, 913, 2462, 5203, 6237, 15035, 34705, 77231, 143044, 166364, 224301, 348326, 464704, 617547, 710869, 939441, 1417900, 2769730, 4101251, 5308732, 9999185, 18533944, 26646186, 33845975, 54249790, 60960273, 108389248

Offset: 1

Author

Omar E. Pol, May 05 2013

Keywords

• nonn

Examples

			3 is in the sequence because 5*3 = 15 and 15 is a partition number: p(7) = A000041(7) = 15.
		

Crossrefs

Cf. A000041, A213179, A213365, A216258, A217726, A222175, A222178, A222179, A225317, A225323, A225325.

Programs

Mathematica

Select[PartitionsP[Range[300]], Mod[#, 5] == 0 &]/5 (* T. D. Noe, May 05 2013 *)

Formula

a(j) = A225325(j)/5.

Extensions

a(9)-a(35) from R. J. Mathar, May 05 2013