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 | 6 |
| 2 | 21 |
| 3 | 56 |
| 4 | 126 |
| 5 | 258 |
| 6 | 498 |
| 7 | 924 |
| 8 | 1659 |
| 9 | 2884 |
| 10 | 4872 |
| 11 | 8028 |
| 12 | 12965 |
| 13 | 20586 |
| 14 | 32187 |
| 15 | 49616 |
| 16 | 75468 |
| 17 | 113412 |
| 18 | 168590 |
| 19 | 248148 |
| 20 | 361929 |
| 21 | 523348 |
| 22 | 750660 |
| 23 | 1068576 |
| 24 | 1510428 |
| 25 | 2120934 |
| 26 | 2959692 |
| 27 | 4105808 |
| 28 | 5663814 |
| 29 | 7771452 |
| 30 | 10609576 |
| 31 | 14414676 |
| 32 | 19494855 |
| 33 | 26249984 |
| 34 | 35197536 |