A039261 - OEIS

A039261 as a simple table

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	7
8	9
9	10
10	11
11	12
12	13
13	14
14	15
15	16
16	17
17	19
18	21
19	22
20	23
21	24
22	25
23	26
24	27
25	28
26	29
27	31
28	33
29	34
30	35
31	36
32	37
33	38
34	39
35	40
36	41
37	43
38	45
39	46
40	47
41	48
42	49
43	50
44	51
45	52
46	53
47	55
48	57
49	58
50	59
51	60
52	61
53	62
54	63
55	64
56	65
57	67
58	69
59	70
60	71
61	80
62	84
63	85
64	86
65	87
66	88
67	89
68	91

[0,1,2,3,4,5,7,9,10,11,12,13,14,15,16,17,19,21,22, 23,24,25,26,27,28,29,31,33,34,35,36,37,38,39,40, 41,43,45,46,47,48,49,50,51,52,53,55,57,58,59,60, 61,62,63,64,65,67,69,70,71,80,84,85,86,87,88,89, 91]

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	7
8	9
9	10
10	11
11	12
12	13
13	14
14	15
15	16
16	17
17	19
18	21
19	22
20	23
21	24
22	25
23	26
24	27
25	28
26	29
27	31
28	33
29	34
30	35
31	36
32	37
33	38
34	39
35	40
36	41
37	43
38	45
39	46
40	47
41	48
42	49
43	50
44	51
45	52
46	53
47	55
48	57
49	58
50	59
51	60
52	61
53	62
54	63
55	64
56	65
57	67
58	69
59	70
60	71
61	80
62	84
63	85
64	86
65	87
66	88
67	89
68	91

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	7
8	9
9	10
10	11
11	12
12	13
13	14
14	15
15	16
16	17
17	19
18	21
19	22
20	23
21	24
22	25
23	26
24	27
25	28
26	29
27	31
28	33
29	34
30	35
31	36
32	37
33	38
34	39
35	40
36	41
37	43
38	45
39	46
40	47
41	48
42	49
43	50
44	51
45	52
46	53
47	55
48	57
49	58
50	59
51	60
52	61
53	62
54	63
55	64
56	65
57	67
58	69
59	70
60	71
61	80
62	84
63	85
64	86
65	87
66	88
67	89
68	91

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	7
8	9
9	10
10	11
11	12
12	13
13	14
14	15
15	16
16	17
17	19
18	21
19	22
20	23
21	24
22	25
23	26
24	27
25	28
26	29
27	31
28	33
29	34
30	35
31	36
32	37
33	38
34	39
35	40
36	41
37	43
38	45
39	46
40	47
41	48
42	49
43	50
44	51
45	52
46	53
47	55
48	57
49	58
50	59
51	60
52	61
53	62
54	63
55	64
56	65
57	67
58	69
59	70
60	71
61	80
62	84
63	85
64	86
65	87
66	88
67	89
68	91