36203

Appears in sequences

• Number of mobiles (circular rooted trees) with n nodes and 6 leaves.at n=8A055344
• a(n) = (6 + 10*n + 5*n^2 + n^3)/2.at n=40A164845
• Expansion of 1/(1 - Sum_{k>=1} mu(k)^2*x^k), where mu(k) is the Moebius function (A008683).at n=17A280194
• a(n) = s(n,n) + s(n,n-1) + s(n,n-2), where s(n,k) are the unsigned Stirling numbers of the first kind (see A132393).at n=23A308305
• Number of finite regions in a complete bipartite graph where the vertices in the two parts are placed on opposite sides of a parabola at integer y coordinates y = 1, 2, ...n.at n=19A392443