Number of partitions of n with equal nonzero number of parts congruent to each of 0 and 4 (mod 5).

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =1a(10) =1a(11) =2a(12) =3a(13) =4a(14) =7a(15) =10a(16) =14a(17) =20a(18) =27a(19) =37a(20) =50a(21) =67a(22) =88a(23) =115a(24) =149a(25) =192a(26) =246a(27) =314a(28) =397a(29) =499