A384908 - cp's OEIS frontend

A384908 Start with a list L of positive integers. At each step n, let the center be the smallest number that has not been used as a center before with index m > 1. For all i < m, swap L(i) with L(i+m). a(n) = L(1).

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

[3, 4, 2, 5, 7, 1, 3, 9, 11, 4, 12, 6, 16, 15, 17, 5, 12, 19, 21, 8, 20, 23, 25, 10, 24, 27, 23, 21, 11, 31, 33, 34, 32, 35, 37, 31, 16, 33, 15, 41, 43, 17, 44, 18, 12, 47, 49, 50, 48, 51, 53, 47, 49, 55, 57, 50, 22, 59, 61, 26, 60, 29, 64, 66, 61, 67, 69, 70, 68, 65, 72, 28, 64, 75, 54, 27, 78, 80, 56]

cp's OEIS Frontend

A384908 Start with a list L of positive integers. At each step n, let the center be the smallest number that has not been used as a center before with index m > 1. For all i < m, swap L(i) with L(i+m). a(n) = L(1).

Table of values

List of values

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

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

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