-2871

Appears in sequences

• Logarithmic derivative of the q-exponential of x, E_q(x,q), evaluated at q=-x.at n=27A198262
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 459", based on the 5-celled von Neumann neighborhood.at n=35A272290
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 467", based on the 5-celled von Neumann neighborhood.at n=37A272321
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 497", based on the 5-celled von Neumann neighborhood.at n=35A272559
• a(1) = 1; a(n) = -Sum_{k=2..n} k^3 * a(floor(n/k)).at n=12A360658