-19389690domain: ZAppears in sequencesExpansion of sqrt(1 - 4*x) in powers of x.at n=16A002420An inverse Chebyshev transform of (1-x)^2.at n=29A099364Expansion of exp( arcsinh( -2*x ) ) in powers of x.at n=32A104624Expansion of exp( arcsinh( 2*x ) ).at n=32A182122