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

Terms

a(0) =1a(1) =3a(2) =7a(3) =18a(4) =42a(5) =97a(6) =207a(7) =431a(8) =861a(9) =1685a(10) =3216a(11) =6042a(12) =11139a(13) =20248a(14) =36245a(15) =64041a(16) =111663a(17) =192432a(18) =327803a(19) =552593a(20) =922129a(21) =1524496a(22) =2497868a(23) =4058745a(24) =6542497a(25) =10467325a(26) =16626651a(27) =26231148a(28) =41114412a(29) =64042922