Number of partitions of n into parts 7k+1 and 7k+2 with at least one part of each type.

Terms

a(0) =0a(1) =0a(2) =1a(3) =1a(4) =2a(5) =2a(6) =3a(7) =3a(8) =4a(9) =6a(10) =7a(11) =9a(12) =10a(13) =12a(14) =13a(15) =15a(16) =19a(17) =22a(18) =27a(19) =30a(20) =35a(21) =38a(22) =43a(23) =50a(24) =57a(25) =67a(26) =74a(27) =85a(28) =92a(29) =103