a(n) = Product_{k=0..n} L(k)+3, where L=A000032 (Lucas numbers).
A374658
a(n) = Product_{k=0..n} L(k)+3, where L=A000032 (Lucas numbers).
Terms
- a(0) =5a(1) =20a(2) =120a(3) =840a(4) =8400a(5) =117600a(6) =2469600a(7) =79027200a(8) =3951360000a(9) =312157440000
External references
- oeis: A374658