-5693

Appears in sequences

• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 123", based on the 5-celled von Neumann neighborhood.at n=41A270213
• Expansion of (1/x) * Series_Reversion( x * (1/(1-x^3) - x) ).at n=10A370840