a(n) = (1/C(0,0) + 1/C(2,1) + ... + 1/C(2n,n))*L, where L = LCM{C(0,0), C(2,1),..., C(2n,n)}.
A025541
a(n) = (1/C(0,0) + 1/C(2,1) + ... + 1/C(2n,n))*L, where L = LCM{C(0,0), C(2,1),..., C(2n,n)}.
Terms
- a(0) =1a(1) =3a(2) =10a(3) =103a(4) =727a(5) =2186a(6) =24061a(7) =625691a(8) =625719a(9) =10637349a(10) =202110261a(11) =202110426a(12) =4648540788a(13) =23242705227a(14) =69728116682
External references
- oeis: A025541