Number of 4-colored generalized Frobenius partitions.

Terms

a(0) =1a(1) =16a(2) =68a(3) =256a(4) =777a(5) =2160a(6) =5460a(7) =13056a(8) =29482a(9) =63952a(10) =133456a(11) =270080a(12) =531091a(13) =1019424a(14) =1913156a(15) =3520512a(16) =6360765a(17) =11305488a(18) =19789160a(19) =34159616a(20) =58201535