1961825

Appears in sequences

• Expansion of 1/sqrt(1 - 10*x + x^2).at n=7A006442
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of 1/sqrt(1 - 2*(2*k+1)*x + x^2).at n=52A335333