33554428

Appears in sequences

• a(n) = 2^n - 4.at n=23A028399
• a(n) = Sum_{k=0..n} floor(C(n,k)/2).at n=26A120739
• Number of pairs of probabilistically independent subsets in a set composed of n elements.at n=23A121312
• Row sums of triangle A166455.at n=24A166456
• Smallest number m such that exactly n editing steps (insert or substitute) are necessary to transform the binary representation of m into the least prime not less than m.at n=23A171402
• Second diagonal under the main diagonal in A172119 written in a square (see comment).at n=23A173033
• 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 619", based on the 5-celled von Neumann neighborhood.at n=24A283353
• 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 705", based on the 5-celled von Neumann neighborhood.at n=24A283650
• 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 705", based on the 5-celled von Neumann neighborhood.at n=24A290194
• 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 961", based on the 5-celled von Neumann neighborhood.at n=24A290828
• a(n) = 2^(n-1) - tau(n) where tau(n) is the number of divisors of n.at n=25A349094