Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where A(n,k) is Sum_{j=0..floor(n/2)} ((n-j)!/j!)*binomial(n-j,j)*k^(n-2*j)*(-1)^j.

A305466

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where A(n,k) is Sum_{j=0..floor(n/2)} ((n-j)!/j!)*binomial(n-j,j)*k^(n-2*j)*(-1)^j.

Terms

    a(0) =1a(1) =1a(2) =0a(3) =1a(4) =1a(5) =-1a(6) =1a(7) =2a(8) =1a(9) =0a(10) =1a(11) =3a(12) =7a(13) =2a(14) =1a(15) =1a(16) =4a(17) =17a(18) =40a(19) =7a(20) =0a(21) =1a(22) =5a(23) =31a(24) =150a(25) =313a(26) =33a(27) =-1a(28) =1a(29) =6

External references