A360585 - cp's OEIS frontend

A360585 The integers of the sequence appear exactly twice. Between the two copies of k there are k even integers. The sequence is always extended with the smallest integer not leading to a contradiction.

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

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

cp's OEIS Frontend

A360585 The integers of the sequence appear exactly twice. Between the two copies of k there are k even 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	1
4	3
5	4
6	5
7	6
8	2
9	3
10	7
11	8
12	9
13	10
14	4
15	5
16	11
17	12
18	13
19	14
20	6
21	15
22	16
23	7
24	17
25	18
26	19
27	20
28	8
29	9
30	21
31	22
32	23
33	24
34	10
35	25
36	26
37	11
38	27
39	28
40	29
41	30
42	12
43	13
44	31
45	32
46	33
47	34
48	14
49	35
50	36
51	15
52	37
53	38
54	39
55	40
56	16
57	17
58	41
59	42
60	43
61	44
62	18
63	19
64	45
65	46
66	47
67	48
68	20
69	49
70	50

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

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