A162749 - OEIS

A162749 as a simple table

n	a(n)
1	3
2	1
3	9
4	15
5	5
6	7
7	33
8	45
9	51
10	63
11	17
12	21
13	27
14	31
15	129
16	153
17	165
18	189
19	195
20	219
21	231
22	255
23	65
24	73
25	85
26	93
27	99
28	107
29	119
30	127
31	513
32	561
33	585
34	633
35	645
36	693
37	717
38	765
39	771
40	819
41	843
42	891
43	903
44	951
45	975
46	1023
47	257
48	273
49	297
50	313
51	325
52	341
53	365
54	381
55	387
56	403
57	427

[3,1,9,15,5,7,33,45,51,63,17,21,27,31,129,153,165, 189,195,219,231,255,65,73,85,93,99,107,119,127, 513,561,585,633,645,693,717,765,771,819,843,891, 903,951,975,1023,257,273,297,313,325,341,365,381, 387,403,427]