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 | 99 |
| 3 | 427 |
| 4 | 1253 |
| 5 | 2931 |
| 6 | 5911 |
| 7 | 10739 |
| 8 | 18057 |
| 9 | 28603 |
| 10 | 43211 |
| 11 | 62811 |
| 12 | 88429 |
| 13 | 121187 |
| 14 | 162303 |
| 15 | 213091 |
| 16 | 274961 |
| 17 | 349419 |
| 18 | 438067 |
| 19 | 542603 |
| 20 | 664821 |
| 21 | 806611 |
| 22 | 969959 |
| 23 | 1156947 |
| 24 | 1369753 |
| 25 | 1610651 |
| 26 | 1882011 |
| 27 | 2186299 |
| 28 | 2526077 |
| 29 | 2904003 |