-1879

Appears in sequences

• Expansion of 1 / (1 + x^2 - x^3) in powers of x.at n=42A077961
• Expansion of 1/(1+x^2+x^3).at n=42A077962
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 403", based on the 5-celled von Neumann neighborhood.at n=29A271810