Infinite square array read by antidiagonals: T(m, 0) = 1, T(m, 1) = m; T(m, k) = (m - k + 1) T(m+1, k-1) - (k-1) (m+1) T(m+2, k-2).

A105937

Infinite square array read by antidiagonals: T(m, 0) = 1, T(m, 1) = m; T(m, k) = (m - k + 1) T(m+1, k-1) - (k-1) (m+1) T(m+2, k-2).

Terms

    a(0) =1a(1) =1a(2) =0a(3) =1a(4) =1a(5) =-2a(6) =1a(7) =2a(8) =-2a(9) =0a(10) =1a(11) =3a(12) =0a(13) =-12a(14) =36a(15) =1a(16) =4a(17) =4a(18) =-24a(19) =24a(20) =0a(21) =1a(22) =5a(23) =10a(24) =-30a(25) =-60a(26) =420a(27) =-1800a(28) =1a(29) =6

External references