230860

Appears in sequences

• a(n) = n*(n^2 - 1)*(n + 2)*(n^2 + 4*n + 6)/72.at n=15A054563
• Sum of divisors of n and product of divisors of n are both perfect cubes.at n=36A244428
• Triangle read by rows: T(n,k) is the number of labeled point-determining graphs with n nodes and k edges, n >= 0, 0 <= k <= n*(n - 1)/2.at n=54A369283