Square array read by upward antidiagonals, A(n,k) = Sum_{j=0..n} (n-j)!*C(n,n-j)* C(n-1,n-j)*k^j, for n>=0 and k>=0.
A253286
Square array read by upward antidiagonals, A(n,k) = Sum_{j=0..n} (n-j)!*C(n,n-j)* C(n-1,n-j)*k^j, for n>=0 and k>=0.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =1a(6) =0a(7) =3a(8) =2a(9) =1a(10) =0a(11) =13a(12) =8a(13) =3a(14) =1a(15) =0a(16) =73a(17) =44a(18) =15a(19) =4a(20) =1a(21) =0a(22) =501a(23) =304a(24) =99a(25) =24a(26) =5a(27) =1a(28) =0a(29) =4051
External references
- oeis: A253286