-5669

Appears in sequences

• a(n) = 111*n^2 - 3123*n + 10753.at n=7A211607
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 331", based on the 5-celled von Neumann neighborhood.at n=39A271280
• Expansion of e.g.f. exp(Sum_{k>=1} mu(k)*x^k/k!), where mu() is the Moebius function (A008683).at n=10A300673