213445

Appears in sequences

• Expansion of 1/sqrt(1 - 10*x + x^2).at n=6A006442
• (2n)-th Legendre polynomial P_{2n}(x), evaluated at x = 2n-1. Here the Legendre polynomials are normalized so that P_{n}(1) = 1.at n=2A105952
• P_6(2n+1), the Legendre polynomial of order 6 at 2n+1.at n=2A144126
• 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=42A335333