-4439

Appears in sequences

• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 401", based on the 5-celled von Neumann neighborhood.at n=33A271806
• G.f.: Product_{m>0} 1/(1 + x^m + 2!*x^(2*m)).at n=24A293287
• Truncate Stirling's asymptotic series for 2! after n terms and round to the nearest integer.at n=44A362114
• The numerators of a series that converges to the Dottie Number (A003957).at n=6A369187