A131404 - cp's OEIS frontend

A131404 a(n) = 2*A131402(n) - 1.

n	a(n)
0	1
1	1
2	1
3	1
4	5
5	1
6	1
7	7
8	7
9	1
10	1
11	11
12	13
13	11
14	1
15	1
16	13
17	27
18	27
19	13
20	1
21	1
22	17
23	39
24	65
25	39
26	17
27	1
28	1
29	19
30	61
31	111
32	111
33	61
34	19
35	1
36	1
37	23
38	79
39	193
40	221
41	193
42	79
43	23
44	1
45	1
46	25
47	109
48	283
49	433
50	433
51	283
52	109
53	25
54	1
55	1
56	29
57	133
58	425
59	715
60	925
61	715
62	425
63	133
64	29
65	1

[1, 1, 1, 1, 5, 1, 1, 7, 7, 1, 1, 11, 13, 11, 1, 1, 13, 27, 27, 13, 1, 1, 17, 39, 65, 39, 17, 1, 1, 19, 61, 111, 111, 61, 19, 1, 1, 23, 79, 193, 221, 193, 79, 23, 1, 1, 25, 109, 283, 433, 433, 283, 109, 25, 1, 1, 29, 133, 425, 715, 925, 715, 425, 133, 29, 1]

cp's OEIS Frontend

A131404 a(n) = 2*A131402(n) - 1.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	5
5	1
6	1
7	7
8	7
9	1
10	1
11	11
12	13
13	11
14	1
15	1
16	13
17	27
18	27
19	13
20	1
21	1
22	17
23	39
24	65
25	39
26	17
27	1
28	1
29	19
30	61
31	111
32	111
33	61
34	19
35	1
36	1
37	23
38	79
39	193
40	221
41	193
42	79
43	23
44	1
45	1
46	25
47	109
48	283
49	433
50	433
51	283
52	109
53	25
54	1
55	1
56	29
57	133
58	425
59	715
60	925
61	715
62	425
63	133
64	29
65	1

n	a(n)
0	1
1	1
2	1
3	1
4	5
5	1
6	1
7	7
8	7
9	1
10	1
11	11
12	13
13	11
14	1
15	1
16	13
17	27
18	27
19	13
20	1
21	1
22	17
23	39
24	65
25	39
26	17
27	1
28	1
29	19
30	61
31	111
32	111
33	61
34	19
35	1
36	1
37	23
38	79
39	193
40	221
41	193
42	79
43	23
44	1
45	1
46	25
47	109
48	283
49	433
50	433
51	283
52	109
53	25
54	1
55	1
56	29
57	133
58	425
59	715
60	925
61	715
62	425
63	133
64	29
65	1

n	a(n)
0	1
1	1
2	1
3	1
4	5
5	1
6	1
7	7
8	7
9	1
10	1
11	11
12	13
13	11
14	1
15	1
16	13
17	27
18	27
19	13
20	1
21	1
22	17
23	39
24	65
25	39
26	17
27	1
28	1
29	19
30	61
31	111
32	111
33	61
34	19
35	1
36	1
37	23
38	79
39	193
40	221
41	193
42	79
43	23
44	1
45	1
46	25
47	109
48	283
49	433
50	433
51	283
52	109
53	25
54	1
55	1
56	29
57	133
58	425
59	715
60	925
61	715
62	425
63	133
64	29
65	1