A358935 - cp's OEIS frontend

A358935 a(n) is the least k > 0 such that fusc(n) = fusc(n + k) or fusc(n) = fusc(n - k) (provided that n - k >= 0), where "fusc" is Stern's diatomic series (A002487).

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

[1, 1, 3, 2, 2, 3, 2, 4, 6, 3, 2, 6, 2, 4, 3, 8, 4, 3, 4, 6, 6, 4, 2, 12, 2, 4, 6, 8, 4, 6, 3, 16, 30, 3, 12, 6, 4, 8, 18, 12, 4, 12, 10, 8, 6, 4, 2, 24, 2, 4, 6, 8, 10, 12, 4, 16, 18, 7, 4, 12, 9, 6, 3, 32, 7, 3, 7, 6, 12, 9, 8, 12, 46, 7, 12, 11, 12, 21, 7]

cp's OEIS Frontend

A358935 a(n) is the least k > 0 such that fusc(n) = fusc(n + k) or fusc(n) = fusc(n - k) (provided that n - k >= 0), where "fusc" is Stern's diatomic series (A002487).

Table of values

List of values

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

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

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