-5299

Appears in sequences

• a(n) = Sum_{d|n} (-1)^(d-1)*d^3.at n=17A138503
• a(n) = -n^3 + 7*n^2 - 5*n + 1.at n=20A161708
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 41", based on the 5-celled von Neumann neighborhood.at n=43A269875