1651609

Properties

Appears in sequences

• a(n) = P_n(7), where P_n is n-th Legendre polynomial; also, a(n) = central coefficient of (1 + 7*x + 12*x^2)^n.at n=6A084768
• P_6(2n+1), the Legendre polynomial of order 6 at 2n+1.at n=3A144126
• Primes of the form P_6(n) where P_k(n) is the Legendre polynomial of order k at n.at n=0A144127
• Smallest prime of the form LegendreP[2*n, k], k integer > 0.at n=2A219315
• 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=51A335333
• Prime numbersat n=124751