A317931 - cp's OEIS frontend

A317931 Numerators of rational valued sequence whose Dirichlet convolution with itself yields A002487, Stern's Diatomic sequence.

n	a(n)
1	1
2	1
3	1
4	3
5	3
6	1
7	3
8	5
9	3
10	3
11	5
12	3
13	5
14	3
15	1
16	35
17	5
18	3
19	7
20	9
21	5
22	5
23	7
24	5
25	19
26	5
27	5
28	9
29	7
30	1
31	5
32	63
33	1
34	5
35	9
36	9
37	11
38	7
39	5
40	15
41	11
42	5
43	13
44	15
45	13
46	7
47	9
48	35
49	27
50	19
51	7
52	15
53	13
54	5
55	7
56	15
57	3
58	7
59	11
60	3
61	9
62	5
63	-7
64	231
65	-1
66	1
67	11
68	15
69	7
70	9
71	13
72	15
73	15
74	11
75	47
76	21
77	19
78	5
79	13
80	105
81	27
82	11
83	19
84	15
85	27
86	13
87	11
88	25
89	17
90	13
91	23
92	21
93	11
94	9
95	1
96	63

[1, 1, 1, 3, 3, 1, 3, 5, 3, 3, 5, 3, 5, 3, 1, 35, 5, 3, 7, 9, 5, 5, 7, 5, 19, 5, 5, 9, 7, 1, 5, 63, 1, 5, 9, 9, 11, 7, 5, 15, 11, 5, 13, 15, 13, 7, 9, 35, 27, 19, 7, 15, 13, 5, 7, 15, 3, 7, 11, 3, 9, 5, -7, 231, -1, 1, 11, 15, 7, 9, 13, 15, 15, 11, 47, 21, 19, 5, 13, 105, 27, 11, 19, 15, 27, 13, 11, 25, 17, 13, 23, 21, 11, 9, 1, 63]

cp's OEIS Frontend

A317931 Numerators of rational valued sequence whose Dirichlet convolution with itself yields A002487, Stern's Diatomic sequence.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	3
5	3
6	1
7	3
8	5
9	3
10	3
11	5
12	3
13	5
14	3
15	1
16	35
17	5
18	3
19	7
20	9
21	5
22	5
23	7
24	5
25	19
26	5
27	5
28	9
29	7
30	1
31	5
32	63
33	1
34	5
35	9
36	9
37	11
38	7
39	5
40	15
41	11
42	5
43	13
44	15
45	13
46	7
47	9
48	35
49	27
50	19
51	7
52	15
53	13
54	5
55	7
56	15
57	3
58	7
59	11
60	3
61	9
62	5
63	-7
64	231
65	-1
66	1
67	11
68	15
69	7
70	9
71	13
72	15
73	15
74	11
75	47
76	21
77	19
78	5
79	13
80	105
81	27
82	11
83	19
84	15
85	27
86	13
87	11
88	25
89	17
90	13
91	23
92	21
93	11
94	9
95	1
96	63

n	a(n)
1	1
2	1
3	1
4	3
5	3
6	1
7	3
8	5
9	3
10	3
11	5
12	3
13	5
14	3
15	1
16	35
17	5
18	3
19	7
20	9
21	5
22	5
23	7
24	5
25	19
26	5
27	5
28	9
29	7
30	1
31	5
32	63
33	1
34	5
35	9
36	9
37	11
38	7
39	5
40	15
41	11
42	5
43	13
44	15
45	13
46	7
47	9
48	35
49	27
50	19
51	7
52	15
53	13
54	5
55	7
56	15
57	3
58	7
59	11
60	3
61	9
62	5
63	-7
64	231
65	-1
66	1
67	11
68	15
69	7
70	9
71	13
72	15
73	15
74	11
75	47
76	21
77	19
78	5
79	13
80	105
81	27
82	11
83	19
84	15
85	27
86	13
87	11
88	25
89	17
90	13
91	23
92	21
93	11
94	9
95	1
96	63

n	a(n)
1	1
2	1
3	1
4	3
5	3
6	1
7	3
8	5
9	3
10	3
11	5
12	3
13	5
14	3
15	1
16	35
17	5
18	3
19	7
20	9
21	5
22	5
23	7
24	5
25	19
26	5
27	5
28	9
29	7
30	1
31	5
32	63
33	1
34	5
35	9
36	9
37	11
38	7
39	5
40	15
41	11
42	5
43	13
44	15
45	13
46	7
47	9
48	35
49	27
50	19
51	7
52	15
53	13
54	5
55	7
56	15
57	3
58	7
59	11
60	3
61	9
62	5
63	-7
64	231
65	-1
66	1
67	11
68	15
69	7
70	9
71	13
72	15
73	15
74	11
75	47
76	21
77	19
78	5
79	13
80	105
81	27
82	11
83	19
84	15
85	27
86	13
87	11
88	25
89	17
90	13
91	23
92	21
93	11
94	9
95	1
96	63