A345877 - cp's OEIS frontend

A345877 a(1) = 1, a(n) = a(n-1)/2 if a(n-1) is even, otherwise a(n) = n - a(n-1).

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

[1, 1, 2, 1, 4, 2, 1, 7, 2, 1, 10, 5, 8, 4, 2, 1, 16, 8, 4, 2, 1, 21, 2, 1, 24, 12, 6, 3, 26, 13, 18, 9, 24, 12, 6, 3, 34, 17, 22, 11, 30, 15, 28, 14, 7, 39, 8, 4, 2, 1, 50, 25, 28, 14, 7, 49, 8, 4, 2, 1, 60, 30, 15, 49, 16, 8, 4, 2, 1, 69, 2, 1, 72, 36, 18, 9, 68, 34, 17, 63, 18, 9, 74, 37, 48, 24, 12, 6, 3]

cp's OEIS Frontend

A345877 a(1) = 1, a(n) = a(n-1)/2 if a(n-1) is even, otherwise a(n) = n - a(n-1).

Table of values

List of values

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

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

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