A235136 - cp's OEIS frontend

A235136 a(n) = (2n - 1) a(n-2) for n>1, a(0) = a(1) = 1.

n	a(n)
0	1
1	1
2	3
3	5
4	21
5	45
6	231
7	585
8	3465
9	9945
10	65835
11	208845
12	1514205
13	5221125
14	40883535
15	151412625
16	1267389585
17	4996616625
18	44358635475
19	184874815125
20	1729986783525
21	7579867420125
22	74389431691575
23	341094033905625
24	3496303289504025
25	16713607661375625

[1, 1, 3, 5, 21, 45, 231, 585, 3465, 9945, 65835, 208845, 1514205, 5221125, 40883535, 151412625, 1267389585, 4996616625, 44358635475, 184874815125, 1729986783525, 7579867420125, 74389431691575, 341094033905625, 3496303289504025, 16713607661375625]

cp's OEIS Frontend

A235136 a(n) = (2n - 1) a(n-2) for n>1, a(0) = a(1) = 1.

Table of values

List of values

cp's OEIS Frontend

A235136 a(n) = (2*n - 1) * a(n-2) for n>1, a(0) = a(1) = 1.

Table of values

List of values

A235136 a(n) = (2n - 1) a(n-2) for n>1, a(0) = a(1) = 1.