A292590 - OEIS

A292590 as a simple table

n	a(n)
1	0
2	0
3	1
4	2
5	0
6	5
7	10
8	2
9	21
10	42
11	4
12	85
13	0
14	0
15	171
16	342
17	10
18	5
19	684
20	20
21	1369
22	2738
23	4
24	5477
25	0
26	42
27	10955
28	8
29	84
30	21911
31	43822
32	8
33	21
34	87644
35	170
36	175289
37	350578
38	0
39	11
40	701156
41	0
42	1402313
43	40
44	342
45	2804627
46	16
47	684
48	85
49	5609254
50	20
51	11218509
52	22437018
53	10
54	44874037
55	89748074
56	1368
57	179496149
58	168
59	40
60	43
61	0
62	2738
63	1
64	358992298
65	5476
66	717984597
67	80
68	8

[0,0,1,2,0,5,10,2,21,42,4,85,0,0,171,342,10,5,684, 20,1369,2738,4,5477,0,42,10955,8,84,21911,43822,8, 21,87644,170,175289,350578,0,11,701156,0,1402313, 40,342,2804627,16,684,85,5609254,20,11218509, 22437018,10,44874037,89748074,1368,179496149,168, 40,43,0,2738,1,358992298,5476,717984597,80,8]