A102670 - cp's OEIS frontend

A102670 Number of digits >= 2 in the decimal representations of all integers from 0 to n.

n	a(n)
0	0
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	8
11	8
12	9
13	10
14	11
15	12
16	13
17	14
18	15
19	16
20	17
21	18
22	20
23	22
24	24
25	26
26	28
27	30
28	32
29	34
30	35
31	36
32	38
33	40
34	42
35	44
36	46
37	48
38	50
39	52
40	53
41	54
42	56
43	58
44	60
45	62
46	64
47	66
48	68
49	70
50	71
51	72
52	74
53	76
54	78
55	80
56	82
57	84
58	86
59	88
60	89
61	90
62	92
63	94
64	96
65	98
66	100
67	102
68	104
69	106
70	107
71	108

[0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 22, 24, 26, 28, 30, 32, 34, 35, 36, 38, 40, 42, 44, 46, 48, 50, 52, 53, 54, 56, 58, 60, 62, 64, 66, 68, 70, 71, 72, 74, 76, 78, 80, 82, 84, 86, 88, 89, 90, 92, 94, 96, 98, 100, 102, 104, 106, 107, 108]

cp's OEIS Frontend

A102670 Number of digits >= 2 in the decimal representations of all integers from 0 to n.

Table of values

List of values

n	a(n)
0	0
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	8
11	8
12	9
13	10
14	11
15	12
16	13
17	14
18	15
19	16
20	17
21	18
22	20
23	22
24	24
25	26
26	28
27	30
28	32
29	34
30	35
31	36
32	38
33	40
34	42
35	44
36	46
37	48
38	50
39	52
40	53
41	54
42	56
43	58
44	60
45	62
46	64
47	66
48	68
49	70
50	71
51	72
52	74
53	76
54	78
55	80
56	82
57	84
58	86
59	88
60	89
61	90
62	92
63	94
64	96
65	98
66	100
67	102
68	104
69	106
70	107
71	108

n	a(n)
0	0
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	8
11	8
12	9
13	10
14	11
15	12
16	13
17	14
18	15
19	16
20	17
21	18
22	20
23	22
24	24
25	26
26	28
27	30
28	32
29	34
30	35
31	36
32	38
33	40
34	42
35	44
36	46
37	48
38	50
39	52
40	53
41	54
42	56
43	58
44	60
45	62
46	64
47	66
48	68
49	70
50	71
51	72
52	74
53	76
54	78
55	80
56	82
57	84
58	86
59	88
60	89
61	90
62	92
63	94
64	96
65	98
66	100
67	102
68	104
69	106
70	107
71	108

n	a(n)
0	0
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	8
11	8
12	9
13	10
14	11
15	12
16	13
17	14
18	15
19	16
20	17
21	18
22	20
23	22
24	24
25	26
26	28
27	30
28	32
29	34
30	35
31	36
32	38
33	40
34	42
35	44
36	46
37	48
38	50
39	52
40	53
41	54
42	56
43	58
44	60
45	62
46	64
47	66
48	68
49	70
50	71
51	72
52	74
53	76
54	78
55	80
56	82
57	84
58	86
59	88
60	89
61	90
62	92
63	94
64	96
65	98
66	100
67	102
68	104
69	106
70	107
71	108