A240321 - OEIS

A240321 as a simple table

n	a(n)
1	2
2	2
3	2
4	4
5	4
6	4
7	4
8	18
9	18
10	4
11	8
12	44
13	172
14	44
15	8
16	8
17	184
18	866
19	866
20	184
21	8
22	16
23	444
24	7326
25	8456
26	7326
27	444
28	16
29	16
30	1826
31	35042
32	143682
33	143682
34	35042
35	1826
36	16
37	32
38	4388
39	291982
40	1352558
41	4934092
42	1352558
43	291982
44	4388
45	32
46	32
47	18022
48	1387224
49	22643786

[2,2,2,4,4,4,4,18,18,4,8,44,172,44,8,8,184,866, 866,184,8,16,444,7326,8456,7326,444,16,16,1826, 35042,143682,143682,35042,1826,16,32,4388,291982, 1352558,4934092,1352558,291982,4388,32,32,18022, 1387224,22643786]