806737

Properties

Appears in sequences

• a(n) is the n-th prime of the form n*x^2+1.at n=20A128970
• a(n) = Sum_{k = 0..n} (-1)^(n+k)*binomial(n, k)*binomial(n+k, k)*A108625(n-1, n-k).at n=7A376458
• Prime numbersat n=64449