Number of partitions of n into parts 5k+1 and 5k+4 with at least one part of each type.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =1a(6) =1a(7) =1a(8) =2a(9) =4a(10) =4a(11) =4a(12) =5a(13) =7a(14) =10a(15) =11a(16) =12a(17) =14a(18) =18a(19) =23a(20) =26a(21) =29a(22) =33a(23) =40a(24) =48a(25) =55a(26) =61a(27) =70a(28) =82a(29) =96