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 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 7 |
| 6 | 14 |
| 7 | 33 |
| 8 | 70 |
| 9 | 173 |
| 10 | 400 |
| 11 | 1008 |
| 12 | 2391 |
| 13 | 6132 |
| 14 | 15019 |
| 15 | 38799 |
| 16 | 96520 |
| 17 | 252022 |
| 18 | 638788 |
| 19 | 1679091 |
| 20 | 4297452 |
| 21 | 11373921 |
| 22 | 29426350 |
| 23 | 78204705 |
| 24 | 203658812 |
| 25 | 543828898 |
| 26 | 1426912159 |
| 27 | 3822817135 |
| 28 | 10078227662 |
| 29 | 27092960887 |
| 30 | 71803114869 |
| 31 | 193496832857 |
| 32 | 514684042158 |