59716

Appears in sequences

• Draw a line through every pair of points with coordinates (x, 1) and (x', 2) with x, x' in 1..n, and then count the number of intersection points above the line y = 2.at n=30A092275
• G.f.: A(x) = exp( Sum_{n>=1} C(2n,n)*A006519(n) * x^n/n ), where A006519(n) = highest power of 2 dividing n.at n=9A162585
• Positions of pandigital 10-digit numbers after the decimal point in the decimal expansion of Pi.at n=26A280183