Ceiling of Gamma(n+3/10)/Gamma(3/10).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =13a(6) =68a(7) =426a(8) =3103a(9) =25751a(10) =239484a(11) =2466678a(12) =27873457a(13) =342843515a(14) =4559818741a(15) =65205407995a(16) =997642742322