-3656

Appears in sequences

• Expansion of 1/sqrt(1+4*x+16*x^2).at n=7A116091
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of 1/sqrt(1 + 2*(k-1)*x + ((k+1)*x)^2).at n=62A307884