-2744

Appears in sequences

• Expansion of e.g.f.: log(1+x)*cos(sin(x)).at n=8A009406
• Expansion of e.g.f. log(1+x)/cosh(sinh(x)).at n=8A009432
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 219", based on the 5-celled von Neumann neighborhood.at n=29A270933
• a(1) = 1, a(2) = -9; a(n) = -n^3 * Sum_{d|n, d < n} a(d) / d^3.at n=27A359531