A309319 - cp's OEIS frontend

A309319 E.g.f.: 1/Product_{k>0} (1 - x^(2k)/(2k)) (even powers only).

n	a(n)
0	1
1	1
2	12
3	300
4	15960
5	1232280
6	157006080
7	25418352960
8	5859886032000
9	1655203620470400
10	604893737678630400
11	261278195494386470400
12	140231830875916632652800
13	86107922772424330377600000
14	63316800257542340301112320000
15	52666943508290765740968161280000

[1, 1, 12, 300, 15960, 1232280, 157006080, 25418352960, 5859886032000, 1655203620470400, 604893737678630400, 261278195494386470400, 140231830875916632652800, 86107922772424330377600000, 63316800257542340301112320000, 52666943508290765740968161280000]

cp's OEIS Frontend

A309319 E.g.f.: 1/Product_{k>0} (1 - x^(2k)/(2k)) (even powers only).

Table of values

List of values

cp's OEIS Frontend

A309319 E.g.f.: 1/Product_{k>0} (1 - x^(2*k)/(2*k)) (even powers only).

Table of values

List of values

A309319 E.g.f.: 1/Product_{k>0} (1 - x^(2k)/(2k)) (even powers only).