A131717 - OEIS

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A131717 as a simple table

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

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

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

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

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