57944

Appears in sequences

• Expansion of e.g.f. tan(tanh(x) + log(x+1)).at n=7A013120
• 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, 1), (-1, 1, 1), (0, 0, -1), (1, 0, 0), (1, 1, 1)}.at n=8A150817
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 377", based on the 5-celled von Neumann neighborhood.at n=7A271462