23518

Appears in sequences

• Number of partitions of n with equal nonzero number of parts congruent to each of 0 and 1 (mod 4).at n=53A035546
• Numbers k such that (7*3^k - 5)/2 is prime.at n=22A059569
• a(n) = n^3 - n^2 - n - 1.at n=29A083074
• a(n) = sigma_3(n) - sigma_2(n) - sigma_1(n).at n=28A092350
• Numbers n of the form p^3-p^2-p-1 (for prime p) such that n^3-n^2-n-1 is prime.at n=0A237528
• Let s(n,j) be Sum_{i=1..j} (prime(primepi(n) + i) mod n). Numbers n such that there exists j with s(n,j) = n.at n=44A274423
• Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic nonresidues mod p that are < p/2.at n=32A282724