82916

Appears in sequences

• Number of rooted identity trees with n nodes and 4-colored non-root nodes.at n=7A052772
• Number A(n,k) of rooted identity trees with n nodes and k-colored non-root nodes; square array A(n,k), n>=0, k>=0, read by antidiagonals.at n=73A255517
• Expansion of Product_{k>=1} 1/(1 - (3*k-1)*x^(3*k-1)).at n=28A265820
• Numbers k such that sigma(k) = sigma(k+19), where sigma(k) is the sum of the divisors of k.at n=25A321533