A047373 - OEIS

A047373 as a simple table

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	7
7	8
8	9
9	10
10	12
11	14
12	15
13	16
14	17
15	19
16	21
17	22
18	23
19	24
20	26
21	28
22	29
23	30
24	31
25	33
26	35
27	36
28	37
29	38
30	40
31	42
32	43
33	44
34	45
35	47
36	49
37	50
38	51
39	52
40	54
41	56
42	57
43	58
44	59
45	61
46	63
47	64
48	65
49	66
50	68
51	70
52	71
53	72
54	73
55	75
56	77
57	78
58	79
59	80
60	82
61	84
62	85
63	86
64	87
65	89
66	91
67	92

[0,1,2,3,5,7,8,9,10,12,14,15,16,17,19,21,22,23,24, 26,28,29,30,31,33,35,36,37,38,40,42,43,44,45,47, 49,50,51,52,54,56,57,58,59,61,63,64,65,66,68,70, 71,72,73,75,77,78,79,80,82,84,85,86,87,89,91,92]

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	7
7	8
8	9
9	10
10	12
11	14
12	15
13	16
14	17
15	19
16	21
17	22
18	23
19	24
20	26
21	28
22	29
23	30
24	31
25	33
26	35
27	36
28	37
29	38
30	40
31	42
32	43
33	44
34	45
35	47
36	49
37	50
38	51
39	52
40	54
41	56
42	57
43	58
44	59
45	61
46	63
47	64
48	65
49	66
50	68
51	70
52	71
53	72
54	73
55	75
56	77
57	78
58	79
59	80
60	82
61	84
62	85
63	86
64	87
65	89
66	91
67	92

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	7
7	8
8	9
9	10
10	12
11	14
12	15
13	16
14	17
15	19
16	21
17	22
18	23
19	24
20	26
21	28
22	29
23	30
24	31
25	33
26	35
27	36
28	37
29	38
30	40
31	42
32	43
33	44
34	45
35	47
36	49
37	50
38	51
39	52
40	54
41	56
42	57
43	58
44	59
45	61
46	63
47	64
48	65
49	66
50	68
51	70
52	71
53	72
54	73
55	75
56	77
57	78
58	79
59	80
60	82
61	84
62	85
63	86
64	87
65	89
66	91
67	92

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	7
7	8
8	9
9	10
10	12
11	14
12	15
13	16
14	17
15	19
16	21
17	22
18	23
19	24
20	26
21	28
22	29
23	30
24	31
25	33
26	35
27	36
28	37
29	38
30	40
31	42
32	43
33	44
34	45
35	47
36	49
37	50
38	51
39	52
40	54
41	56
42	57
43	58
44	59
45	61
46	63
47	64
48	65
49	66
50	68
51	70
52	71
53	72
54	73
55	75
56	77
57	78
58	79
59	80
60	82
61	84
62	85
63	86
64	87
65	89
66	91
67	92