A277830 - cp's OEIS frontend

A277830 Number of digits '0' in the set of all numbers from 0 to A014824(n) = Sum_{i=1..n} i*10^(n-i) = (0, 1, 12, 123, 1234, 12345, ...).

n	a(n)
0	1
1	1
2	2
3	23
4	344
5	4665
6	58986
7	713307
8	8367628
9	96021949
10	1083676272
11	12071330614
12	133058985146
13	1454046641578
14	15775034317010
15	170096022182442
16	1824417011947874
17	19478738020713306
18	207133059219478738
19	2194787382318244170
20	23182441724417009624
21	244170096256515775267

[1, 1, 2, 23, 344, 4665, 58986, 713307, 8367628, 96021949, 1083676272, 12071330614, 133058985146, 1454046641578, 15775034317010, 170096022182442, 1824417011947874, 19478738020713306, 207133059219478738, 2194787382318244170, 23182441724417009624, 244170096256515775267]

cp's OEIS Frontend

A277830 Number of digits '0' in the set of all numbers from 0 to A014824(n) = Sum_{i=1..n} i*10^(n-i) = (0, 1, 12, 123, 1234, 12345, ...).

Table of values

List of values