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).
A305401
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).
Terms
- a(0) =1a(1) =1a(2) =0a(3) =1a(4) =1a(5) =1a(6) =1a(7) =2a(8) =3a(9) =0a(10) =1a(11) =3a(12) =9a(13) =10a(14) =1a(15) =1a(16) =4a(17) =19a(18) =56a(19) =43a(20) =0a(21) =1a(22) =5a(23) =33a(24) =174a(25) =457a(26) =225a(27) =1a(28) =1a(29) =6
External references
- oeis: A305401