Number of partitions of 5n such that cn(1,5) = cn(4,5) < cn(2,5) = cn(3,5) <= cn(0,5).

Terms

a(0) =0a(1) =1a(2) =4a(3) =11a(4) =26a(5) =59a(6) =129a(7) =279a(8) =588a(9) =1216a(10) =2451a(11) =4836a(12) =9326a(13) =17641a(14) =32746a(15) =59795a(16) =107507a(17) =190634a(18) =333661a(19) =577104a(20) =987043a(21) =1670725a(22) =2800269a(23) =4650351a(24) =7655282a(25) =12497879a(26) =20243241a(27) =32543510a(28) =51944000a(29) =82345113