A039072 - OEIS

A039072 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	11
11	13
12	15
13	16
14	17
15	18
16	19
17	21
18	23
19	24
20	25
21	26
22	27
23	29
24	31
25	38
26	40
27	41
28	42
29	43
30	45
31	47
32	52
33	56
34	57
35	58
36	59
37	61
38	63
39	64
40	65
41	66
42	67
43	69
44	71
45	72
46	73
47	74
48	75
49	77
50	79
51	80
52	81
53	82
54	83
55	85
56	87
57	88
58	89
59	90
60	91
61	93
62	95
63	102
64	104
65	105
66	106
67	107
68	109

[0,1,2,3,5,7,8,9,10,11,13,15,16,17,18,19,21,23,24, 25,26,27,29,31,38,40,41,42,43,45,47,52,56,57,58, 59,61,63,64,65,66,67,69,71,72,73,74,75,77,79,80, 81,82,83,85,87,88,89,90,91,93,95,102,104,105,106, 107,109]

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	7
7	8
8	9
9	10
10	11
11	13
12	15
13	16
14	17
15	18
16	19
17	21
18	23
19	24
20	25
21	26
22	27
23	29
24	31
25	38
26	40
27	41
28	42
29	43
30	45
31	47
32	52
33	56
34	57
35	58
36	59
37	61
38	63
39	64
40	65
41	66
42	67
43	69
44	71
45	72
46	73
47	74
48	75
49	77
50	79
51	80
52	81
53	82
54	83
55	85
56	87
57	88
58	89
59	90
60	91
61	93
62	95
63	102
64	104
65	105
66	106
67	107
68	109

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	7
7	8
8	9
9	10
10	11
11	13
12	15
13	16
14	17
15	18
16	19
17	21
18	23
19	24
20	25
21	26
22	27
23	29
24	31
25	38
26	40
27	41
28	42
29	43
30	45
31	47
32	52
33	56
34	57
35	58
36	59
37	61
38	63
39	64
40	65
41	66
42	67
43	69
44	71
45	72
46	73
47	74
48	75
49	77
50	79
51	80
52	81
53	82
54	83
55	85
56	87
57	88
58	89
59	90
60	91
61	93
62	95
63	102
64	104
65	105
66	106
67	107
68	109

n	a(n)
1	0
2	1
3	2
4	3
5	5
6	7
7	8
8	9
9	10
10	11
11	13
12	15
13	16
14	17
15	18
16	19
17	21
18	23
19	24
20	25
21	26
22	27
23	29
24	31
25	38
26	40
27	41
28	42
29	43
30	45
31	47
32	52
33	56
34	57
35	58
36	59
37	61
38	63
39	64
40	65
41	66
42	67
43	69
44	71
45	72
46	73
47	74
48	75
49	77
50	79
51	80
52	81
53	82
54	83
55	85
56	87
57	88
58	89
59	90
60	91
61	93
62	95
63	102
64	104
65	105
66	106
67	107
68	109