53249

Appears in sequences

• a(n) = n*2^(n-1) + 1.at n=13A005183
• Denominators of continued fraction convergents to sqrt(641).at n=11A042231
• a(n) = Sum_{d divides n} d*2^(n-n/d).at n=12A080267
• a(n) = Sum_{d|n} d*2^(d-1) for n > 0.at n=13A083413
• a(n) = 52*n^2 + 1.at n=32A158644
• a(n) = 2*a(n-1) - 1 with a(0)=14.at n=12A168596
• The y member of the positive proper fundamental solution (x = x1(n), y = y1(n)) of the first class for the Pell equation x^2 - D(n)*y^2 = +8 for odd D(n) = A263012(n).at n=28A264350
• 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 774", based on the 5-celled von Neumann neighborhood.at n=39A290238
• Partial sums of A299258.at n=40A299264
• a(n) = Sum_{d|n} (-1)^(n/d+1)*d*2^(d-1).at n=12A318368
• a(n) = Sum_{d|n} 2^(d-1) * d^(n/d).at n=12A359730
• Expansion of Sum_{k>0} x^k / (1 - 2 * x^k)^(k+1).at n=12A360797
• Expansion of Sum_{k>0} x^k / (1 - (2 * x)^k)^(k+1).at n=12A360798