8769600

Appears in sequences

• Numbers k such that phi(sigma(k)) + sigma(phi(k)) = 2k.at n=17A066950
• Total number of inversions in all permutations of order n consisting of a single cycle.at n=10A227404
• Triangle, read by rows, where the g.f. of row n equals the sum of permutations of compositions of functions (1 + k*y*x) for k=1..n with parameter y independent of variable x, as evaluated at x=1.at n=47A277408