50997

Appears in sequences

• Strong pseudoprimes to base 11.at n=16A020237
• Number of nonnegative solutions of x1^2 + x2^2 + ... + x12^2 = n.at n=16A045853
• Indices of primes in sequence defined by A(0) = 59, A(n) = 10*A(n-1) - 41 for n > 0.at n=26A101581
• Numbers k such that 3*10^k + 8*R_k - 7 is a prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=20A102978
• Take an n X n square grid of points in the plane; a(n) = number of non-isomorphic ways to divide the points into two sets using a straight line.at n=33A116696
• Expansion of Product_{k>=1} (1 + x^(3*k-2))^(3*k-2).at n=40A262949