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 | 6 |
| 3 | 27 |
| 4 | 102 |
| 5 | 333 |
| 6 | 969 |
| 7 | 2572 |
| 8 | 6309 |
| 9 | 14472 |
| 10 | 31333 |
| 11 | 64500 |
| 12 | 127011 |
| 13 | 240475 |
| 14 | 439626 |
| 15 | 778848 |
| 16 | 1341286 |
| 17 | 2251350 |
| 18 | 3691629 |
| 19 | 5925443 |
| 20 | 9326451 |
| 21 | 14417175 |
| 22 | 21918490 |
| 23 | 32812572 |
| 24 | 48422262 |
| 25 | 70510271 |
| 26 | 101402091 |
| 27 | 144137322 |
| 28 | 202654565 |
| 29 | 282015876 |
| 30 | 388677651 |
| 31 | 530815688 |
| 32 | 718713015 |
| 33 | 965220510 |