Triangle, T(n, k, m) = 1 if (k=0 or k=n), otherwise (m*(n-k) + 1)*T(n-1, k-1, m) + (m*k + 1)*T(n-1, k, m) + m*A157636(n, k)*T(n-2, k-1, m) for m = 1, read by rows.

A157637

Triangle, T(n, k, m) = 1 if (k=0 or k=n), otherwise (m*(n-k) + 1)*T(n-1, k-1, m) + (m*k + 1)*T(n-1, k, m) + m*A157636(n, k)*T(n-2, k-1, m) for m = 1, read by rows.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =1a(6) =1a(7) =16a(8) =16a(9) =1a(10) =1a(11) =42a(12) =136a(13) =42a(14) =1a(15) =1a(16) =99a(17) =816a(18) =816a(19) =99a(20) =1a(21) =1a(22) =219a(23) =3951a(24) =10200a(25) =3951a(26) =219a(27) =1a(28) =1a(29) =466

External references