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 | 4 |
| 2 | 11 |
| 3 | 27 |
| 4 | 59 |
| 5 | 123 |
| 6 | 241 |
| 7 | 458 |
| 8 | 838 |
| 9 | 1498 |
| 10 | 2608 |
| 11 | 4459 |
| 12 | 7473 |
| 13 | 12339 |
| 14 | 20058 |
| 15 | 32197 |
| 16 | 51027 |
| 17 | 80003 |
| 18 | 124092 |
| 19 | 190683 |
| 20 | 290322 |
| 21 | 438392 |
| 22 | 656681 |
| 23 | 976479 |
| 24 | 1441726 |
| 25 | 2114700 |
| 26 | 3082164 |
| 27 | 4465650 |
| 28 | 6433177 |
| 29 | 9217720 |
| 30 | 13138950 |
| 31 | 18636135 |
| 32 | 26307773 |
| 33 | 36969518 |