Number of partitions of n with equal number of parts congruent to each of 1 and 4 (mod 5).

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =1a(5) =3a(6) =2a(7) =4a(8) =5a(9) =5a(10) =12a(11) =8a(12) =16a(13) =18a(14) =20a(15) =37a(16) =31a(17) =50a(18) =59a(19) =64a(20) =108a(21) =96a(22) =146a(23) =169a(24) =189a(25) =286a(26) =275a(27) =388a(28) =452a(29) =504