-1588

Appears in sequences

• Coefficients of the series expansion of g.f. A124635 at x=infinity.at n=6A124646
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 126", based on the 5-celled von Neumann neighborhood.at n=30A270216
• Irregular triangle of Catalan-based numbers, read by rows.at n=17A336110