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) |
|---|---|
| 0 | 1 |
| 1 | 11 |
| 2 | 61 |
| 3 | 211 |
| 4 | 551 |
| 5 | 1201 |
| 6 | 2311 |
| 7 | 4061 |
| 8 | 6661 |
| 9 | 10351 |
| 10 | 15401 |
| 11 | 22111 |
| 12 | 30811 |
| 13 | 41861 |
| 14 | 55651 |
| 15 | 72601 |
| 16 | 93161 |
| 17 | 117811 |
| 18 | 147061 |
| 19 | 181451 |
| 20 | 221551 |
| 21 | 267961 |
| 22 | 321311 |
| 23 | 382261 |
| 24 | 451501 |
| 25 | 529751 |
| 26 | 617761 |
| 27 | 716311 |
| 28 | 826211 |
| 29 | 948301 |
| 30 | 1083451 |