A253071 - OEIS

A253071 as a simple table

n	a(n)
0	1
1	7
2	7
3	21
4	7
5	49
6	21
7	95
8	7
9	49
10	49
11	147
12	21
13	147
14	95
15	333
16	7
17	49
18	49
19	147
20	49
21	343
22	147
23	665
24	21
25	147
26	147
27	441
28	95
29	665
30	333
31	1319
32	7
33	49
34	49
35	147
36	49
37	343
38	147
39	665
40	49
41	343
42	343
43	1029
44	147
45	1029
46	665
47	2331
48	21
49	147
50	147
51	441
52	147
53	1029
54	441
55	1995
56	95
57	665
58	665
59	1995
60	333
61	2331
62	1319
63	4837

[1,7,7,21,7,49,21,95,7,49,49,147,21,147,95,333,7, 49,49,147,49,343,147,665,21,147,147,441,95,665, 333,1319,7,49,49,147,49,343,147,665,49,343,343, 1029,147,1029,665,2331,21,147,147,441,147,1029, 441,1995,95,665,665,1995,333,2331,1319,4837]