Heinz numbers of integer partitions whose sum of reciprocals squared is an integer.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =32a(6) =64a(7) =81a(8) =128a(9) =162a(10) =256a(11) =324a(12) =512a(13) =648a(14) =1024a(15) =1296a(16) =2048a(17) =2592a(18) =4096a(19) =5184a(20) =6561a(21) =8192a(22) =8775a(23) =10368a(24) =13122a(25) =16384a(26) =17550a(27) =20736a(28) =26244a(29) =32768