31581

Appears in sequences

• Row sums of triangle A167749.at n=14A167750
• Wiener index of the n-web graph.at n=28A180576
• Number of (w,x,y,z) with all terms in {1,...,n} and w >= harmonic mean of {x,y,z}.at n=15A212107
• a(n) = 29*n^2.at n=33A244635
• Total sum of number of lambda-parking functions, where lambda ranges over all partitions of n into distinct parts.at n=18A265016
• Numbers k such that k!4 + 2^7 is prime, where k!4 = k!!!! is the quadruple factorial number (A007662).at n=23A291348
• Number of bond trees with n bonds on the square lattice.at n=8A308409
• Terms k of A228058 for which A048146(k)+A162296(k) >= 2*k, where A048146 is the sum of non-unitary divisors, and A162296 is the sum of divisors that have a square factor.at n=42A389219