A023755 - OEIS

A023755 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	13
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	30
29	31
30	32
31	33
32	34
33	35
34	36
35	37
36	38
37	39
38	40
39	41
40	45
41	46
42	47
43	48
44	49
45	50
46	51
47	52
48	53
49	54
50	55
51	60
52	61
53	62
54	63
55	64
56	65
57	66
58	67
59	68
60	69
61	75
62	76
63	77
64	78
65	79
66	80
67	81
68	82
69	83
70	90

[0,1,2,3,4,5,6,7,8,9,10,11,12,13,15,16,17,18,19, 20,21,22,23,24,25,26,27,30,31,32,33,34,35,36,37, 38,39,40,41,45,46,47,48,49,50,51,52,53,54,55,60, 61,62,63,64,65,66,67,68,69,75,76,77,78,79,80,81, 82,83,90]

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	13
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	30
29	31
30	32
31	33
32	34
33	35
34	36
35	37
36	38
37	39
38	40
39	41
40	45
41	46
42	47
43	48
44	49
45	50
46	51
47	52
48	53
49	54
50	55
51	60
52	61
53	62
54	63
55	64
56	65
57	66
58	67
59	68
60	69
61	75
62	76
63	77
64	78
65	79
66	80
67	81
68	82
69	83
70	90

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	13
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	30
29	31
30	32
31	33
32	34
33	35
34	36
35	37
36	38
37	39
38	40
39	41
40	45
41	46
42	47
43	48
44	49
45	50
46	51
47	52
48	53
49	54
50	55
51	60
52	61
53	62
54	63
55	64
56	65
57	66
58	67
59	68
60	69
61	75
62	76
63	77
64	78
65	79
66	80
67	81
68	82
69	83
70	90

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	13
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	30
29	31
30	32
31	33
32	34
33	35
34	36
35	37
36	38
37	39
38	40
39	41
40	45
41	46
42	47
43	48
44	49
45	50
46	51
47	52
48	53
49	54
50	55
51	60
52	61
53	62
54	63
55	64
56	65
57	66
58	67
59	68
60	69
61	75
62	76
63	77
64	78
65	79
66	80
67	81
68	82
69	83
70	90