536870896

Appears in sequences

• Numerators of coefficients in expansion of x^-2*(1-exp(-2*x))^2.at n=24A104042
• a(n) = (-1/2)*Sum_{i1 + i2 + i3 = 2*n} ((2*n)!/(i1! i2! i3!))*B(i1), where B are the Bernoulli numbers (with i1, i2, i3 >= 1).at n=14A124133
• a(n) = 16*(2^n - 1).at n=25A175164
• Decimal representation of the diagonal from the corner to the origin 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=28A289961
• a(n) = 2^n - floor((n+3)/2).at n=29A320933