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 | 9 |
| 2 | 42 |
| 3 | 143 |
| 4 | 378 |
| 5 | 837 |
| 6 | 1634 |
| 7 | 2907 |
| 8 | 4818 |
| 9 | 7553 |
| 10 | 11322 |
| 11 | 16359 |
| 12 | 22922 |
| 13 | 31293 |
| 14 | 41778 |
| 15 | 54707 |
| 16 | 70434 |
| 17 | 89337 |
| 18 | 111818 |
| 19 | 138303 |
| 20 | 169242 |
| 21 | 205109 |
| 22 | 246402 |
| 23 | 293643 |
| 24 | 347378 |
| 25 | 408177 |
| 26 | 476634 |
| 27 | 553367 |
| 28 | 639018 |
| 29 | 734253 |
| 30 | 839762 |
| 31 | 956259 |
| 32 | 1084482 |
| 33 | 1225193 |