a(n) = numerator(Jtilde2(n)).

Terms

a(0) =1a(1) =3a(2) =41a(3) =147a(4) =8649a(5) =32307a(6) =487889a(7) =1856307a(8) =454689481a(9) =1748274987a(10) =26989009929a(11) =104482114467