42777

Appears in sequences

• Non-palindromic numbers n such that phi(n) = phi(reversal(n)).at n=26A097647
• a(n) = 97*n^2.at n=21A174338
• a(n) = floor(n^(3/2))*floor(3+n^(3/2))/2.at n=43A185593
• Number of unlabeled rooted trees with n nodes in which the non-leaf branches directly under any given node are all equal.at n=16A320222
• Expansion of e.g.f. 1 / (1 - (exp(x) - 1)^5 / 5!).at n=10A346920