135097

Appears in sequences

• Strong pseudoprimes to base 56.at n=22A020282
• Triangle of rooted planar maps up to orientation-preserving isomorphisms.at n=73A046653
• G.f. satisfies: A(x) = x + 3*x*A(x) + 6*x*A(x)*A(A(x)) + 10*x*A(x)*A(A(x))*A(A(A(x))) +...at n=6A153305
• Number of unlabeled rooted trees with n nodes where the outdegrees (branching factors) of adjacent nodes differ by at most one.at n=24A260403