11184808

Appears in sequences

• a(n) = abs(A154879(n+1)).at n=24A115341
• a(n) = (2^n + 2*(-1)^n - 6)/3.at n=25A153772
• Third differences of the Jacobsthal sequence A001045.at n=25A154879
• Numerator of c(n) = 2^(2*n)*(2^(2*n) - 1)/(2*n)!, a coefficient used in the expansion of tan(x) as Sum_{n>=1} c(n)*|Bernoulli(2*n)|*x^(2*n-1).at n=11A225845
• Decimal representation of the n-th iteration of the "Rule 133" elementary cellular automaton starting with a single ON (black) cell.at n=13A267457
• Decimal representation of the x-axis, from the left edge to the origin, of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 809", based on the 5-celled von Neumann neighborhood.at n=29A284177
• Positive integers m with binary expansion (b_1, ..., b_k) (where k = A070939(m)) such that b_i = [gcd(m, i)=1] for i = 1..k (where [] is an Iverson bracket).at n=35A320675