8589934588

Appears in sequences

• a(n) = 2^n - 4.at n=31A028399
• Second inverse mod 2 binomial transform of 2^n.at n=17A101554
• Numerators of coefficients in expansion of x^-2*(1-exp(-2*x))^2.at n=30A104042
• Second diagonal under the main diagonal in A172119 written in a square (see comment).at n=31A173033
• 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 513", based on the 5-celled von Neumann neighborhood.at n=32A282807
• 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=32A283353
• 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=32A283650
• 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=32A290194
• 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=32A290828
• a(n) = 2^n - (2^(n-1) mod n), where "mod" is the nonnegative remainder operator.at n=32A320465
• a(n) = 2^(n-1) - tau(n) where tau(n) is the number of divisors of n.at n=33A349094
• Greater member of Carmichael's variant of amicable pair: numbers k < m such that s(k) = m and s(m) = k, where s(k) = A371418(k).at n=22A371420