268435441

Appears in sequences

• Numerator of Sum_{i=1..n} i/2^i.at n=28A036295
• Numerator of the probability that the sum of n uniform picks on [0,1] is first greater than 2 (i.e., the sum of n-1 is not).at n=29A090137
• Expansion of o.g.f. x*(1 - x + x^2)/(1 -3*x +x^2 +3*x^3 -2*x^4).at n=28A173009
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 621", based on the 5-celled von Neumann neighborhood.at n=28A283358
• Decimal representation of the x-axis, from the origin to the right edge, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 637", based on the 5-celled von Neumann neighborhood.at n=28A283407
• a(n) = 4^n - n - 1.at n=13A290721
• a(n) = 2^n - floor((n+3)/2).at n=28A320933