cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A277836 Number of '6' 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

n a(n)
0 0
1 0
2 1
3 22
4 343
5 4664
6 58986
7 713315
8 8367717
9 96022849
10 1083685281
11 12071420713
12 133059886145
13 1454055651577
14 15775124417009
15 170096923182441
16 1824426021947881
17 19478828120713394
18 207133960219479637
19 2194796392318253180
20 23182531824417099723

List of values

[0, 0, 1, 22, 343, 4664, 58986, 713315, 8367717, 96022849, 1083685281, 12071420713, 133059886145, 1454055651577, 15775124417009, 170096923182441, 1824426021947881, 19478828120713394, 207133960219479637, 2194796392318253180, 23182531824417099723]