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.
| n | a(n) |
|---|---|
| 1 | 10101 |
| 2 | 10201 |
| 3 | 10301 |
| 4 | 10401 |
| 5 | 10501 |
| 6 | 10601 |
| 7 | 10701 |
| 8 | 10801 |
| 9 | 10901 |
| 10 | 101101 |
| 11 | 20102 |
| 12 | 20202 |
| 13 | 20302 |
| 14 | 20402 |
| 15 | 20502 |
| 16 | 20602 |
| 17 | 20702 |
| 18 | 20802 |
| 19 | 20902 |
| 20 | 201102 |
| 21 | 30103 |
| 22 | 30303 |
| 23 | 30403 |
| 24 | 30503 |
| 25 | 30603 |
| 26 | 30703 |
| 27 | 30803 |
| 28 | 30903 |
| 29 | 301103 |
| 30 | 11111 |
| 31 | 11211 |
| 32 | 11311 |
| 33 | 11411 |
| 34 | 11511 |
| 35 | 11611 |
| 36 | 11711 |