293968

Appears in sequences

• Sum of the heights of all left factors of Dyck paths of length n.at n=17A132891
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (0, -1, 1), (0, 1, -1), (1, 0, 1), (1, 1, 0)}.at n=9A150843
• Expansion of e.g.f. exp(2*x/3) / (1-3*x)^(1/9).at n=7A381505