-3653

Appears in sequences

• a(n) = -n^3 + 7*n^2 - 5*n + 1.at n=18A161708
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 205", based on the 5-celled von Neumann neighborhood.at n=35A270732
• Expansion of g.f. A(x) = Sum_{n=-oo..+oo} x^n * (i + x^n)^(2*n), where i^2 = -1.at n=58A363569