Triangle T(n, k, m) = f(n, m)/(f(k, m)*f(n-k, m)), where T(0, k, m) = 1, f(n, k) = Product_{j=1..n} ( j!*((k+1)^j -1)/k ), f(n, 0) = n!, and m = 2, read by rows.

A156766

Triangle T(n, k, m) = f(n, m)/(f(k, m)*f(n-k, m)), where T(0, k, m) = 1, f(n, k) = Product_{j=1..n} ( j!*((k+1)^j -1)/k ), f(n, 0) = n!, and m = 2, read by rows.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =8a(5) =1a(6) =1a(7) =78a(8) =78a(9) =1a(10) =1a(11) =960a(12) =9360a(13) =960a(14) =1a(15) =1a(16) =14520a(17) =1742400a(18) =1742400a(19) =14520a(20) =1a(21) =1a(22) =262080a(23) =475675200a(24) =5854464000a(25) =475675200a(26) =262080a(27) =1a(28) =1a(29) =5508720

External references