594720

Appears in sequences

• a(n) is the smallest number k >= 1 with exactly n divisors d, for which sigma(k) is divisible by d*sigma(d).at n=36A344103
• Triangle read by rows: T(n,k) = number of circuits of length k in the complete undirected graph on n labeled vertices, for n >= 1 and k = 0 .. n(n-1)/2.at n=52A357887
• Expansion of e.g.f. exp(x^2/(1-x)^4).at n=7A387244