Second binomial transform of binomial(n+6, 6).

Terms

a(0) =1a(1) =9a(2) =60a(3) =344a(4) =1794a(5) =8754a(6) =40636a(7) =181380a(8) =784251a(9) =3302451a(10) =13598280a(11) =54922860a(12) =218131380a(13) =853586100a(14) =3296508840a(15) =12581531064a(16) =47510175861a(17) =177681098205a(18) =658665849636