-185725domain: ZAppears in sequencesNumerators in expansion of sqrt(1+x). Absolute values give numerators in expansion of sqrt(1-x).at n=14A002596Numerator of Maclaurin expansion of (t*sqrt(t^2+1) + arcsinh(t))/2, the arc length of Archimedes' spiral.at n=14A091154Numerators in expansion of (1-x)^(5/2).at n=16A161202