A074135 - OEIS

A074135 as a simple table

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

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

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

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

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