A180004 - OEIS

A180004 as a simple table

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	14
14	15
15	16
16	17
17	18
18	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
36	37
37	38
38	39
39	41
40	42
41	43
42	44
43	45
44	46
45	47
46	48
47	49
48	50
49	51
50	52
51	53
52	54
53	55
54	56
55	57
56	58
57	59
58	60
59	61
60	62
61	63
62	64
63	65
64	66
65	68
66	69
67	70
68	71
69	72
70	73
71	74
72	75

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

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	14
14	15
15	16
16	17
17	18
18	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
36	37
37	38
38	39
39	41
40	42
41	43
42	44
43	45
44	46
45	47
46	48
47	49
48	50
49	51
50	52
51	53
52	54
53	55
54	56
55	57
56	58
57	59
58	60
59	61
60	62
61	63
62	64
63	65
64	66
65	68
66	69
67	70
68	71
69	72
70	73
71	74
72	75

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	14
14	15
15	16
16	17
17	18
18	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
36	37
37	38
38	39
39	41
40	42
41	43
42	44
43	45
44	46
45	47
46	48
47	49
48	50
49	51
50	52
51	53
52	54
53	55
54	56
55	57
56	58
57	59
58	60
59	61
60	62
61	63
62	64
63	65
64	66
65	68
66	69
67	70
68	71
69	72
70	73
71	74
72	75

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	14
14	15
15	16
16	17
17	18
18	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
36	37
37	38
38	39
39	41
40	42
41	43
42	44
43	45
44	46
45	47
46	48
47	49
48	50
49	51
50	52
51	53
52	54
53	55
54	56
55	57
56	58
57	59
58	60
59	61
60	62
61	63
62	64
63	65
64	66
65	68
66	69
67	70
68	71
69	72
70	73
71	74
72	75