A026136 - cp's OEIS frontend

A026136 Lexicographically earliest permutation of the positive integers such that |a(n)-n| = [a(n)/2].

n	a(n)
1	1
2	3
3	2
4	7
5	9
6	4
7	5
8	15
9	6
10	19
11	21
12	8
13	25
14	27
15	10
16	11
17	33
18	12
19	13
20	39
21	14
22	43
23	45
24	16
25	17
26	51
27	18
28	55
29	57
30	20
31	61
32	63
33	22
34	23
35	69
36	24
37	73
38	75
39	26
40	79
41	81
42	28
43	29
44	87
45	30
46	31
47	93
48	32
49	97
50	99
51	34
52	35
53	105
54	36
55	37
56	111
57	38
58	115
59	117
60	40
61	41
62	123

[1, 3, 2, 7, 9, 4, 5, 15, 6, 19, 21, 8, 25, 27, 10, 11, 33, 12, 13, 39, 14, 43, 45, 16, 17, 51, 18, 55, 57, 20, 61, 63, 22, 23, 69, 24, 73, 75, 26, 79, 81, 28, 29, 87, 30, 31, 93, 32, 97, 99, 34, 35, 105, 36, 37, 111, 38, 115, 117, 40, 41, 123]

cp's OEIS Frontend

A026136 Lexicographically earliest permutation of the positive integers such that |a(n)-n| = [a(n)/2].

Table of values

List of values

n	a(n)
1	1
2	3
3	2
4	7
5	9
6	4
7	5
8	15
9	6
10	19
11	21
12	8
13	25
14	27
15	10
16	11
17	33
18	12
19	13
20	39
21	14
22	43
23	45
24	16
25	17
26	51
27	18
28	55
29	57
30	20
31	61
32	63
33	22
34	23
35	69
36	24
37	73
38	75
39	26
40	79
41	81
42	28
43	29
44	87
45	30
46	31
47	93
48	32
49	97
50	99
51	34
52	35
53	105
54	36
55	37
56	111
57	38
58	115
59	117
60	40
61	41
62	123

n	a(n)
1	1
2	3
3	2
4	7
5	9
6	4
7	5
8	15
9	6
10	19
11	21
12	8
13	25
14	27
15	10
16	11
17	33
18	12
19	13
20	39
21	14
22	43
23	45
24	16
25	17
26	51
27	18
28	55
29	57
30	20
31	61
32	63
33	22
34	23
35	69
36	24
37	73
38	75
39	26
40	79
41	81
42	28
43	29
44	87
45	30
46	31
47	93
48	32
49	97
50	99
51	34
52	35
53	105
54	36
55	37
56	111
57	38
58	115
59	117
60	40
61	41
62	123

n	a(n)
1	1
2	3
3	2
4	7
5	9
6	4
7	5
8	15
9	6
10	19
11	21
12	8
13	25
14	27
15	10
16	11
17	33
18	12
19	13
20	39
21	14
22	43
23	45
24	16
25	17
26	51
27	18
28	55
29	57
30	20
31	61
32	63
33	22
34	23
35	69
36	24
37	73
38	75
39	26
40	79
41	81
42	28
43	29
44	87
45	30
46	31
47	93
48	32
49	97
50	99
51	34
52	35
53	105
54	36
55	37
56	111
57	38
58	115
59	117
60	40
61	41
62	123