31174

Appears in sequences

• Sum of the lengths of the cycle types of the permutation created by duality and reversal on the partitions of n.at n=38A036050
• Number of compositions of n, where the difference between the number of odd parts and the number of even parts is 4.at n=15A242502
• Numbers n such that phi(n) = phi(n+11), with Euler's totient function phi = A000010.at n=27A276504
• Numbers k for which rank of the elliptic curve y^2=x^3+k*x is 4.at n=31A309031
• a(n) = [x^n] 1/(Sum_{k>=0} x^(k^2))^n.at n=12A363780