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

Terms

a(0) =0a(1) =1a(2) =4a(3) =11a(4) =27a(5) =63a(6) =142a(7) =312a(8) =665a(9) =1382a(10) =2795a(11) =5524a(12) =10674a(13) =20228a(14) =37634a(15) =68886a(16) =124179a(17) =220779a(18) =387458a(19) =671883a(20) =1152027a(21) =1954614a(22) =3283494a(23) =5464437a(24) =9013558a(25) =14743397a(26) =23923577a(27) =38526121a(28) =61593796a(29) =97795238