37153

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 22.at n=9A031610
• Semiprimes in A033951.at n=31A113691
• Eigensequence of A047999, Sierpinski's gasket.at n=20A166966
• a(n) = Numerator of Bernoulli(n, 1) + 1/(n+1).at n=22A174341
• Numerator of H(n+4) - H(n), where H(n) = Sum_{k=1..n} 1/k.at n=24A189642
• Numbers whose binary expansion equals the first n digits of the binary sequence A252488 whose run lengths are given by A001511 (the ruler function).at n=15A253585
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 417", based on the 5-celled von Neumann neighborhood.at n=40A272018
• 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 902", based on the 5-celled von Neumann neighborhood.at n=33A290665
• N(p-1)/p + D(p-1)/p^2 with p the n-th prime and B(k) = N(k)/D(k) the k-th Bernoulli number.at n=8A327033
• a(0) = a(1) = 1; a(n+2) = Sum_{k=0..n} (binomial(n,k) mod 2) * a(k).at n=42A331520