46805

Appears in sequences

• 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, -1, 0), (-1, 0, 1), (-1, 1, 0), (1, -1, -1), (1, 0, 0)}.at n=11A148517
• a(n) = Sum_{k=1..n} F(n mod k) where F = A000045, the Fibonacci numbers.at n=44A198259
• Square array read by upwards antidiagonals: T(m,n) is the number of simple 3-connected triangulations of a closed region in the plane with m+3 given external edges and 3n+m internal edges, m>=0, n>=1.at n=52A210664
• a(n) = n*(n + 7)*(n + 14)*(n + 21)/24.at n=23A264447
• Number of simple strong triangulations of a fixed pentagon with n interior nodes.at n=7A341920
• Expansion of (1 - x^2 + x^3)/((1 - x^2 + x^3)^2 - 4*x^3).at n=21A376787