A087639 - cp's OEIS frontend

A087639 E.g.f.: Product_{m >= 1} (1+x^(2m)/(2m)) (even powers only).

n	a(n)
0	1
1	1
2	6
3	210
4	8400
5	740880
6	88814880
7	15217282080
8	3319002086400
9	992431440000000
10	351841557779712000
11	156995673442223616000
12	82429416503416958976000
13	52017974139195896832000000
14	37547796668359538444083200000
15	31987697744989345038846566400000

[1, 1, 6, 210, 8400, 740880, 88814880, 15217282080, 3319002086400, 992431440000000, 351841557779712000, 156995673442223616000, 82429416503416958976000, 52017974139195896832000000, 37547796668359538444083200000, 31987697744989345038846566400000]

cp's OEIS Frontend

A087639 E.g.f.: Product_{m >= 1} (1+x^(2m)/(2m)) (even powers only).

Table of values

List of values

cp's OEIS Frontend

A087639 E.g.f.: Product_{m >= 1} (1+x^(2*m)/(2*m)) (even powers only).

Table of values

List of values

A087639 E.g.f.: Product_{m >= 1} (1+x^(2m)/(2m)) (even powers only).