59527313920domain: NAppears in sequencesNumber of partitions of n-set into odd blocks.at n=19A003724Expansion of e.g.f. cosh(sinh(x))/exp(x).at n=18A009152Binomial transform of expansion of cosh(sinh(x)).at n=18A081443Expansion of e.g.f. exp(sinh(x)) - exp(cosh(x) - 1).at n=19A372508