A277347 - cp's OEIS frontend

A277347 a(n) = Product_{k=1..n} (2k(k-1)+1).

n	a(n)
1	1
2	5
3	65
4	1625
5	66625
6	4064125
7	345450625
8	39035920625
9	5660208490625
10	1024497736803125
11	226413999833490625
12	59999709955875015625
13	18779909216188879890625
14	6854666863908941160078125
15	2885814749705664228392890625
16	1388076894608424493856980390625
17	756501907561591349152054312890625

[1, 5, 65, 1625, 66625, 4064125, 345450625, 39035920625, 5660208490625, 1024497736803125, 226413999833490625, 59999709955875015625, 18779909216188879890625, 6854666863908941160078125, 2885814749705664228392890625, 1388076894608424493856980390625, 756501907561591349152054312890625]

cp's OEIS Frontend

A277347 a(n) = Product_{k=1..n} (2k(k-1)+1).

Table of values

List of values

cp's OEIS Frontend

A277347 a(n) = Product_{k=1..n} (2*k*(k-1)+1).

Table of values

List of values

A277347 a(n) = Product_{k=1..n} (2k(k-1)+1).