a(n) = Product_{k=0..n} Nimsum (2*k + 2), with Nimsum (2 + 2) = 0 replaced by 1.
A352526
a(n) = Product_{k=0..n} Nimsum (2*k + 2), with Nimsum (2 + 2) = 0 replaced by 1.
Terms
- a(0) =2a(1) =2a(2) =12a(3) =48a(4) =480a(5) =3840a(6) =53760a(7) =645120a(8) =11612160a(9) =185794560a(10) =4087480320a(11) =81749606400
External references
- oeis: A352526