A277833 - cp's OEIS frontend

A277833 Number of '3' digits 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	0
1	0
2	1
3	23
4	349
5	4721
6	59553
7	718985
8	8424417
9	96589849
10	1089355281
11	12128120713
12	133626886145
13	1459725651582
14	15831824417065
15	170663923183008
16	1830096021953551
17	19535528120770094
18	207700960220046637
19	2200466392323923180
20	23239231824473799723

[0, 0, 1, 23, 349, 4721, 59553, 718985, 8424417, 96589849, 1089355281, 12128120713, 133626886145, 1459725651582, 15831824417065, 170663923183008, 1830096021953551, 19535528120770094, 207700960220046637, 2200466392323923180, 23239231824473799723]

cp's OEIS Frontend

A277833 Number of '3' digits 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