431521

Properties

Appears in sequences

• Prime hypotenuses of Pythagorean triangles with a prime leg.at n=30A067756
• Primes of the form (p^k + k - 1)/k for prime p and some k > 1.at n=37A230444
• Hypotenuses of primitive Pythagorean triangles two sides of which are Pythagorean primes.at n=15A308341
• Primes of the form (p^k+1)/2 where p is prime and k > 1.at n=38A308442
• a(n) = the n-th order Taylor polynomial (centered at 0) of c(x)^(3*n) evaluated at x = 1, where c(x) = (1 - sqrt(1 - 4*x))/(2*x) is the o.g.f. of the sequence of Catalan numbers A000108.at n=6A333095
• Prime numbersat n=36279