26045

Appears in sequences

• Numbers k such that 10^k - 3 is prime.at n=11A089675
• a(n) = 169*n^2 + 140*n + 29.at n=12A156640
• Positive numbers y such that y^2 is of the form x^2+(x+119)^2 with integer x.at n=32A156650
• Expansion of Product_{k>=1} (1 + x^(3*k)) / (1 - x^k).at n=33A266648
• a(0) = 1; a(n) = Sum_{k=0..n-1} binomial(n-1,k)^3 * a(k).at n=6A346185
• a(n) = Sum_{k=0..n} 3^k * binomial(n+1,k+1) * binomial(2*k+2,k+2).at n=4A387309