23080

Appears in sequences

• a(n)-th prime is sum of first k primes for some k.at n=29A020641
• T(n+5,5) with T as in A036355.at n=7A036684
• a(n) = 49n^2 - 28n - 20.at n=21A118058
• a(n) = a(n-1) + a(n-2) - [a(n-3)/4] - [a(n-4)/2] - [a(n-5)/4].at n=32A173564
• Numbers n such that both phi(n) and psi(n) are perfect squares.at n=34A291549
• a(n) is the number of vertices formed by n-secting the angles of an octagon.at n=40A335770
• Number of polynomials of degree n over GF(2) in which the degrees of all distinct irreducible factors are distinct.at n=15A351915
• Expansion of 1/(1 - x/(1 - 9*x^3)^(2/3)).at n=14A373544
• Consecutive states of the linear congruential pseudo-random number generator (25173*s+13849) mod 2^16 when started at s=1.at n=31A383940