A360476 - cp's OEIS frontend

A360476 The integers of the sequence appear exactly twice. Between the two copies of k there are k odd integers. The sequence is always extended with the smallest integer not leading to a contradiction.

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

[1, 2, 3, 1, 2, 4, 5, 6, 7, 3, 8, 9, 4, 10, 11, 12, 13, 5, 6, 14, 15, 16, 17, 7, 18, 19, 8, 20, 21, 22, 23, 9, 10, 24, 25, 26, 27, 11, 12, 28, 29, 30, 31, 13, 32, 33, 14, 34, 35, 36, 37, 15, 16, 38, 39, 40, 41, 17, 42, 43, 18, 44, 45, 46, 47, 19, 20, 48, 49, 50]

cp's OEIS Frontend

A360476 The integers of the sequence appear exactly twice. Between the two copies of k there are k odd integers. The sequence is always extended with the smallest integer not leading to a contradiction.

Table of values

List of values

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

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

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