Triangle read by rows: T(n,k) = n * T(n-1,k) + (-1)^(n-k) for 0 <= k <= n with initial values T(n,k) = 0 if n < 0 or k < 0 or k > n.
A352650
Triangle read by rows: T(n,k) = n * T(n-1,k) + (-1)^(n-k) for 0 <= k <= n with initial values T(n,k) = 0 if n < 0 or k < 0 or k > n.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =1a(5) =1a(6) =2a(7) =4a(8) =2a(9) =1a(10) =9a(11) =15a(12) =9a(13) =3a(14) =1a(15) =44a(16) =76a(17) =44a(18) =16a(19) =4a(20) =1a(21) =265a(22) =455a(23) =265a(24) =95a(25) =25a(26) =5a(27) =1a(28) =1854a(29) =3186
External references
- oeis: A352650