976924698750domain: NAppears in sequencesa(n) = LCM of denominators of Cotesian numbers {C(n,k), 0 <= k <= n}.at n=15A002176Denominator of Cotesian number C(n,0).at n=16A100621Denominator of the coefficient of [x^(2n)] of the Taylor series log(cosec(x)*arcsinh(x)).at n=7A202522