Number of partitions p of n such that the number of parts is a part or max(p) - min(p) is a part.

Terms

a(0) =0a(1) =1a(2) =0a(3) =1a(4) =2a(5) =4a(6) =4a(7) =8a(8) =10a(9) =15a(10) =19a(11) =24a(12) =35a(13) =45a(14) =57a(15) =76a(16) =98a(17) =123a(18) =161a(19) =198a(20) =252a(21) =313a(22) =388a(23) =472a(24) =597a(25) =722a(26) =891a(27) =1085a(28) =1332a(29) =1602