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.

A067894 Write 0, 1, ..., n in binary and add as if they were decimal numbers.

Table of values

n a(n)
0 0
1 1
2 11
3 22
4 122
5 223
6 333
7 444
8 1444
9 2445
10 3455
11 4466
12 5566
13 6667
14 7777
15 8888
16 18888
17 28889
18 38899
19 48910
20 59010
21 69111
22 79221
23 89332
24 100332
25 111333
26 122343
27 133354
28 144454
29 155555
30 166665
31 177776
32 277776
33 377777
34 477787
35 577798
36 677898
37 777999
38 878109

List of values

[0, 1, 11, 22, 122, 223, 333, 444, 1444, 2445, 3455, 4466, 5566, 6667, 7777, 8888, 18888, 28889, 38899, 48910, 59010, 69111, 79221, 89332, 100332, 111333, 122343, 133354, 144454, 155555, 166665, 177776, 277776, 377777, 477787, 577798, 677898, 777999, 878109]