Denominator of Product_{ 2 <= p < 2*n } (2*n - p)/p.

Terms

a(0) =1a(1) =3a(2) =5a(3) =7a(4) =1a(5) =11a(6) =65a(7) =7a(8) =17a(9) =209a(10) =91a(11) =23a(12) =187a(13) =247a(14) =29a(15) =133331a(16) =247a(17) =1a(18) =5454059a(19) =7657a(20) =697a(21) =9263963a(22) =21793a(23) =14053a(24) =464899a(25) =15930683a(26) =29203a(27) =39844579a(28) =21553277a(29) =59