123100

Appears in sequences

• a(n) = (2*n - 1)*(7*n^2 - 7*n + 6)/6.at n=37A063490
• Composite numbers k such that (k+1)*sigma(k) is a perfect square.at n=20A073586
• Number of permutations s_1,s_2,...,s_n of 1,2,...,n such that for all j=1,2,...,n, j divides Sum_{i=1..j} s_i^3.at n=43A291355
• Number of permutations s_1,s_2,...,s_n of 1,2,...,n such that for all j=1,2,...,n, j divides Sum_{i=1..j} s_i^3.at n=44A291355