Number of partitions of n into parts 7k and 7k+1 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) =1a(8) =1a(9) =1a(10) =1a(11) =1a(12) =1a(13) =1a(14) =4a(15) =4a(16) =4a(17) =4a(18) =4a(19) =4a(20) =4a(21) =10a(22) =11a(23) =11a(24) =11a(25) =11a(26) =11a(27) =11a(28) =22a(29) =25