Fifth right hand column of triangle A163940.

Terms

a(0) =1a(1) =14a(2) =121a(3) =834a(4) =5037a(5) =27918a(6) =145777a(7) =728858a(8) =3526933a(9) =16640262a(10) =76952793a(11) =350167122a(12) =1572467389a(13) =6984206846a(14) =30735634369a(15) =134202204426a(16) =582040933605