A318578 - cp's OEIS frontend

A318578 Let k be the greatest odd divisor of n and let S be the sequence of positive integers not in the sequence so far in increasing order. Then a(n) = S(k).

n	a(n)
1	1
2	2
3	5
4	3
5	9
6	7
7	13
8	4
9	17
10	12
11	21
12	10
13	25
14	18
15	29
16	6
17	33
18	23
19	37
20	16
21	41
22	28
23	45
24	14
25	49
26	34
27	53
28	24
29	57
30	39
31	61
32	8
33	65
34	44
35	69
36	31
37	73
38	50
39	77
40	22
41	81
42	55
43	85
44	38
45	89
46	60
47	93
48	19
49	97
50	66
51	101
52	46
53	105
54	71
55	109
56	32
57	113
58	76
59	117
60	52
61	121
62	82
63	125
64	11
65	129
66	87
67	133

[1, 2, 5, 3, 9, 7, 13, 4, 17, 12, 21, 10, 25, 18, 29, 6, 33, 23, 37, 16, 41, 28, 45, 14, 49, 34, 53, 24, 57, 39, 61, 8, 65, 44, 69, 31, 73, 50, 77, 22, 81, 55, 85, 38, 89, 60, 93, 19, 97, 66, 101, 46, 105, 71, 109, 32, 113, 76, 117, 52, 121, 82, 125, 11, 129, 87, 133]

cp's OEIS Frontend

A318578 Let k be the greatest odd divisor of n and let S be the sequence of positive integers not in the sequence so far in increasing order. Then a(n) = S(k).

Table of values

List of values

n	a(n)
1	1
2	2
3	5
4	3
5	9
6	7
7	13
8	4
9	17
10	12
11	21
12	10
13	25
14	18
15	29
16	6
17	33
18	23
19	37
20	16
21	41
22	28
23	45
24	14
25	49
26	34
27	53
28	24
29	57
30	39
31	61
32	8
33	65
34	44
35	69
36	31
37	73
38	50
39	77
40	22
41	81
42	55
43	85
44	38
45	89
46	60
47	93
48	19
49	97
50	66
51	101
52	46
53	105
54	71
55	109
56	32
57	113
58	76
59	117
60	52
61	121
62	82
63	125
64	11
65	129
66	87
67	133

n	a(n)
1	1
2	2
3	5
4	3
5	9
6	7
7	13
8	4
9	17
10	12
11	21
12	10
13	25
14	18
15	29
16	6
17	33
18	23
19	37
20	16
21	41
22	28
23	45
24	14
25	49
26	34
27	53
28	24
29	57
30	39
31	61
32	8
33	65
34	44
35	69
36	31
37	73
38	50
39	77
40	22
41	81
42	55
43	85
44	38
45	89
46	60
47	93
48	19
49	97
50	66
51	101
52	46
53	105
54	71
55	109
56	32
57	113
58	76
59	117
60	52
61	121
62	82
63	125
64	11
65	129
66	87
67	133

n	a(n)
1	1
2	2
3	5
4	3
5	9
6	7
7	13
8	4
9	17
10	12
11	21
12	10
13	25
14	18
15	29
16	6
17	33
18	23
19	37
20	16
21	41
22	28
23	45
24	14
25	49
26	34
27	53
28	24
29	57
30	39
31	61
32	8
33	65
34	44
35	69
36	31
37	73
38	50
39	77
40	22
41	81
42	55
43	85
44	38
45	89
46	60
47	93
48	19
49	97
50	66
51	101
52	46
53	105
54	71
55	109
56	32
57	113
58	76
59	117
60	52
61	121
62	82
63	125
64	11
65	129
66	87
67	133