Triangle T(n,k) = f(n,k,n-2), n >= 0, 0 <= k <= n, where f is given below.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =0a(5) =1a(6) =1a(7) =3a(8) =3a(9) =1a(10) =1a(11) =12a(12) =14a(13) =12a(14) =1a(15) =1a(16) =30a(17) =45a(18) =45a(19) =30a(20) =1a(21) =1a(22) =60a(23) =114a(24) =138a(25) =114a(26) =60a(27) =1a(28) =1a(29) =105