A384086 - cp's OEIS frontend

A384086 a(n) = [x^n] Product_{k=1..n} ((1 + kx)/(1 - kx))^2.

n	a(n)
0	1
1	4
2	72
3	2352
4	112000
5	7023540
6	546991704
7	50923706176
8	5517464159232
9	682067031126660
10	94744306830613000
11	14610279918692775504
12	2476682373835289303424
13	457771369968515293229812
14	91624876032673265663215800
15	19743379886572250897986694400
16	4556982707091255612929249419264

[1, 4, 72, 2352, 112000, 7023540, 546991704, 50923706176, 5517464159232, 682067031126660, 94744306830613000, 14610279918692775504, 2476682373835289303424, 457771369968515293229812, 91624876032673265663215800, 19743379886572250897986694400, 4556982707091255612929249419264]

cp's OEIS Frontend

A384086 a(n) = [x^n] Product_{k=1..n} ((1 + kx)/(1 - kx))^2.

Table of values

List of values

cp's OEIS Frontend

A384086 a(n) = [x^n] Product_{k=1..n} ((1 + k*x)/(1 - k*x))^2.

Table of values

List of values

A384086 a(n) = [x^n] Product_{k=1..n} ((1 + kx)/(1 - kx))^2.