-1072

Appears in sequences

• Expansion of e.g.f. cos(sinh(x))/cos(x), even terms only.at n=4A009058
• Expansion of exp(sin(x))/cosh(x).at n=8A009208
• Row sums of triangle A132898.at n=31A132899
• Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of max{j mod i, i mod j} (A204016).at n=21A204017
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 217", based on the 5-celled von Neumann neighborhood.at n=21A270912