165726

Appears in sequences

• Orbit size of each tree A080263(n) under Donaghey's "Map M" Catalan automorphism.at n=23A080272
• Orbit size of each tree A080263(n) under Donaghey's "Map M" Catalan automorphism.at n=24A080272
• Triangle read by rows in which row n gives coefficients of polynomial R_n(y) that satisfies R_n(1/3) = 3^n, where R_n(y) forms the initial (n+1) terms of g.f. A057083(y)^(n+1).at n=41A097186
• a(n) = (n+1)(n+2)^3*(n+3)(n+4)(5n^2 + 16n + 15)/1440.at n=7A108670
• Numbers k such that k*sigma(k)*sigma(sigma(k)) is a square.at n=9A116004
• The hyper-Wiener index of the meta-polyphenyl chain with n hexagons (see the Dou et al. and the Deng references).at n=8A216113