a(n) = Product_{k=0..n} L(k)+2, where L=A000032 (Lucas numbers).
A374656
a(n) = Product_{k=0..n} L(k)+2, where L=A000032 (Lucas numbers).
Terms
- a(0) =4a(1) =12a(2) =60a(3) =360a(4) =3240a(5) =42120a(6) =842400a(7) =26114400a(8) =1279605600a(9) =99809236800
External references
- oeis: A374656