A151783 - OEIS

A151783 as a simple table

n	a(n)
1	1
2	1
3	4
4	1
5	4
6	4
7	16
8	1
9	4
10	4
11	16
12	4
13	16
14	16
15	64
16	1
17	4
18	4
19	16
20	4
21	16
22	16
23	64
24	4
25	16
26	16
27	64
28	16
29	64
30	64
31	256
32	1
33	4
34	4
35	16
36	4
37	16
38	16
39	64
40	4
41	16
42	16
43	64
44	16
45	64
46	64
47	256
48	4
49	16
50	16
51	64
52	16
53	64
54	64
55	256
56	16
57	64
58	64
59	256
60	64
61	256
62	256
63	1024
64	1
65	4
66	4
67	16
68	4
69	16
70	16
71	64
72	4
73	16
74	16
75	64
76	16
77	64

[1,1,4,1,4,4,16,1,4,4,16,4,16,16,64,1,4,4,16,4,16, 16,64,4,16,16,64,16,64,64,256,1,4,4,16,4,16,16,64, 4,16,16,64,16,64,64,256,4,16,16,64,16,64,64,256, 16,64,64,256,64,256,256,1024,1,4,4,16,4,16,16,64, 4,16,16,64,16,64]