Number of integer partitions of n such that the least part plus the greatest part is odd.

Terms

a(0) =0a(1) =0a(2) =1a(3) =1a(4) =4a(5) =3a(6) =9a(7) =8a(8) =17a(9) =17a(10) =32a(11) =32a(12) =56a(13) =61a(14) =94a(15) =106a(16) =158a(17) =181a(18) =257a(19) =298a(20) =410a(21) =485a(22) =646a(23) =764a(24) =1001a(25) =1194a(26) =1532a(27) =1826a(28) =2316a(29) =2765