122816

Appears in sequences

• Number of ternary Lyndon words of length n with exactly two 1's.at n=13A124720
• a(n) = (4/3)*u*(u^3+6*u^2+8*u-3) where u=floor((3*n+5)/2).at n=8A160451
• Triangle read by rows: T(p,q) is the number of B-diagrams G such that omega(G)=p half edges and h_f(G)=q non-used outer non-cut half edges.at n=34A265199
• a(n) = ((2^n*n + i*(1 - i)^n - i*(1 + i)^n))/4, where i is the imaginary unit.at n=15A323225
• The number of edges inside a cross with width 3 and height n (see Comments in A331455 for definition) formed by the straight line segments mutually connecting all vertices and all points.at n=23A330851
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = Sum_{j=0..n} k^j * binomial(n,j)^k.at n=58A336187