297271296domain: NAppears in sequencesa(n) is the denominator of the polynomial in e^2 giving the (2n)th du Bois Reymond constant.at n=9A085466Denominators of A002110 divided by A102647, starting from the second term of both.at n=15A165658Partial products of A051953; a(1) = 1.at n=19A281019