A217662 - cp's OEIS frontend

A217662 For n > 2 , a(n) = a(n-2) + lcm(a(n-2), n-1) with a(1)=2, a(2)=2.

n	a(n)
1	2
2	2
3	4
4	8
5	8
6	48
7	32
8	384
9	64
10	1536
11	384
12	18432
13	768
14	258048
15	6144
16	1548288
17	12288
18	27869184
19	49152
20	557383680
21	294912
22	1114767360
23	3538944
24	26754416640
25	7077888
26	160526499840
27	99090432
28	321052999680
29	198180864
30	9631589990400
31	1189085184
32	308210879692800

[2, 2, 4, 8, 8, 48, 32, 384, 64, 1536, 384, 18432, 768, 258048, 6144, 1548288, 12288, 27869184, 49152, 557383680, 294912, 1114767360, 3538944, 26754416640, 7077888, 160526499840, 99090432, 321052999680, 198180864, 9631589990400, 1189085184, 308210879692800]

cp's OEIS Frontend

A217662 For n > 2 , a(n) = a(n-2) + lcm(a(n-2), n-1) with a(1)=2, a(2)=2.

Table of values

List of values