A023781 - OEIS

A023781 as a simple table

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	11
13	12
14	15
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	23
23	24
24	25
25	29
26	30
27	31
28	32
29	33
30	34
31	35
32	36
33	37
34	38
35	43
36	44
37	45
38	46
39	47
40	48
41	49
42	50
43	51
44	57
45	58
46	59
47	60
48	61
49	62
50	63
51	64
52	71
53	72
54	73
55	74
56	75
57	76
58	77
59	85
60	86
61	87
62	88
63	89
64	90
65	99
66	100
67	101
68	102
69	103

[0,1,2,3,4,5,6,7,8,9,10,11,12,15,16,17,18,19,20, 21,22,23,24,25,29,30,31,32,33,34,35,36,37,38,43, 44,45,46,47,48,49,50,51,57,58,59,60,61,62,63,64, 71,72,73,74,75,76,77,85,86,87,88,89,90,99,100,101, 102,103]

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	11
13	12
14	15
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	23
23	24
24	25
25	29
26	30
27	31
28	32
29	33
30	34
31	35
32	36
33	37
34	38
35	43
36	44
37	45
38	46
39	47
40	48
41	49
42	50
43	51
44	57
45	58
46	59
47	60
48	61
49	62
50	63
51	64
52	71
53	72
54	73
55	74
56	75
57	76
58	77
59	85
60	86
61	87
62	88
63	89
64	90
65	99
66	100
67	101
68	102
69	103

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	11
13	12
14	15
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	23
23	24
24	25
25	29
26	30
27	31
28	32
29	33
30	34
31	35
32	36
33	37
34	38
35	43
36	44
37	45
38	46
39	47
40	48
41	49
42	50
43	51
44	57
45	58
46	59
47	60
48	61
49	62
50	63
51	64
52	71
53	72
54	73
55	74
56	75
57	76
58	77
59	85
60	86
61	87
62	88
63	89
64	90
65	99
66	100
67	101
68	102
69	103

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	11
13	12
14	15
15	16
16	17
17	18
18	19
19	20
20	21
21	22
22	23
23	24
24	25
25	29
26	30
27	31
28	32
29	33
30	34
31	35
32	36
33	37
34	38
35	43
36	44
37	45
38	46
39	47
40	48
41	49
42	50
43	51
44	57
45	58
46	59
47	60
48	61
49	62
50	63
51	64
52	71
53	72
54	73
55	74
56	75
57	76
58	77
59	85
60	86
61	87
62	88
63	89
64	90
65	99
66	100
67	101
68	102
69	103