Number of partitions p of n such that max(p) - 2*min(p) is a part of p.

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =2a(6) =4a(7) =6a(8) =8a(9) =12a(10) =17a(11) =24a(12) =31a(13) =42a(14) =54a(15) =73a(16) =92a(17) =118a(18) =149a(19) =192a(20) =236a(21) =298a(22) =366a(23) =459a(24) =558a(25) =692a(26) =838a(27) =1029a(28) =1238a(29) =1510