Triangle T(n, k, m) = (m*(n-k) + 1)*T(n-1, k-1, m) + (m*k + 1)*T(n-1, k, m) + m*k*(n-k)*T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1 and m = 1, read by rows.

A157147

Triangle T(n, k, m) = (m*(n-k) + 1)*T(n-1, k-1, m) + (m*k + 1)*T(n-1, k, m) + m*k*(n-k)*T(n-2, k-1, m) with T(n, 0, m) = T(n, n, m) = 1 and m = 1, read by rows.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =1a(6) =1a(7) =15a(8) =15a(9) =1a(10) =1a(11) =37a(12) =110a(13) =37a(14) =1a(15) =1a(16) =83a(17) =568a(18) =568a(19) =83a(20) =1a(21) =1a(22) =177a(23) =2415a(24) =5534a(25) =2415a(26) =177a(27) =1a(28) =1a(29) =367

External references