23636

Appears in sequences

• Numbers k such that 10^k + 7 is prime.at n=20A088274
• Numbers n such that 1 - Sum{k=1..n/2} A001223(2k-1)*(-1)^k = 0.at n=15A130643
• Numbers n such that 1 - S(n) = 0, where S(n) = (S(n-1) + A000040(n))*(-1)^n; S(0)=0, n=>1.at n=20A131197
• Expansion of Product_{k>=1} (1+x^k)^(k*(k+1)*(k+2)/6).at n=11A258343
• Sum of the sizes of the longest clique of all partitions of n.at n=28A264397
• Expansion of Product_{k>=1} (1 + x^prime(k))/(1 - x^prime(k)).at n=55A300413
• a(n) = Sum_{k=1..n} floor(n^3/k^3).at n=26A344675
• a(n) = Sum_{k=1..n} binomial(2*k, k) * phi(k), where phi is the Euler totient function.at n=6A356346
• Consecutive internal states of the linear congruential pseudo-random number generator (8121*s + 28411) mod 134456 when started at 1.at n=9A385461