Number of partitions of n into parts 7k and 7k+3 with at least one part of each type.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =0a(9) =1a(10) =0a(11) =0a(12) =1a(13) =0a(14) =0a(15) =1a(16) =3a(17) =0a(18) =1a(19) =3a(20) =0a(21) =1a(22) =3a(23) =6a(24) =1a(25) =3a(26) =7a(27) =1a(28) =3a(29) =7