66559

Appears in sequences

• Number of nonempty subsets of {1, 1/2, 1/3, ..., 1/n} that sum to an integer.at n=51A111233
• Number of nonempty subsets of {1, 1/2, 1/3, ..., 1/n} that sum to an integer.at n=52A111233
• 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 374", based on the 5-celled von Neumann neighborhood.at n=19A281525
• Decimal representation of the diagonal from the origin to the corner of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 205", based on the 5-celled von Neumann neighborhood.at n=19A286697
• Smallest Boolean functions from big equivalence classes representing monotone functions (subsequence of A227723).at n=39A349743
• Numbers k such that A163511(k) is a seventh power.at n=21A366287
• a(n) = 2^(n+1) + 4^(n-1) - 1.at n=8A389172