A372509 - cp's OEIS frontend

A372509 Numbers that can be written as a product of double factorials of odd numbers.

n	a(n)
1	1
2	3
3	9
4	15
5	27
6	45
7	81
8	105
9	135
10	225
11	243
12	315
13	405
14	675
15	729
16	945
17	1215
18	1575
19	2025
20	2187
21	2835
22	3375
23	3645
24	4725
25	6075
26	6561
27	8505
28	10125
29	10395
30	10935
31	11025
32	14175
33	18225
34	19683
35	23625
36	25515
37	30375
38	31185
39	32805
40	33075
41	42525
42	50625

[1, 3, 9, 15, 27, 45, 81, 105, 135, 225, 243, 315, 405, 675, 729, 945, 1215, 1575, 2025, 2187, 2835, 3375, 3645, 4725, 6075, 6561, 8505, 10125, 10395, 10935, 11025, 14175, 18225, 19683, 23625, 25515, 30375, 31185, 32805, 33075, 42525, 50625]

cp's OEIS Frontend

A372509 Numbers that can be written as a product of double factorials of odd numbers.

Table of values

List of values