149331

Appears in sequences

• Numerators of continued fraction convergents to sqrt(474).at n=12A041904
• Numbers k such that k^3 divides 17^(k^2) + 1.at n=37A177817
• First differences of A036449, triangular numbers by definition.at n=7A189475
• Numbers k such that k^2 +- k +- 1 is prime for all four possibilities.at n=23A236056
• Number of ways to choose two points on a centered hexagonal grid of size n.at n=13A241219
• Numbers n such that n^2 divides (17^n + 1).at n=22A292392
• Triangular numbers that are the sum of two distinct nonzero triangular numbers in exactly two ways.at n=24A350368