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 | 17 |
| 3 | 138 |
| 4 | 670 |
| 5 | 2355 |
| 6 | 6671 |
| 7 | 16212 |
| 8 | 35148 |
| 9 | 69765 |
| 10 | 129085 |
| 11 | 225566 |
| 12 | 375882 |
| 13 | 601783 |
| 14 | 931035 |
| 15 | 1398440 |
| 16 | 2046936 |
| 17 | 2928777 |
| 18 | 4106793 |
| 19 | 5655730 |
| 20 | 7663670 |
| 21 | 10233531 |
| 22 | 13484647 |
| 23 | 17554428 |
| 24 | 22600100 |
| 25 | 28800525 |
| 26 | 36358101 |
| 27 | 45500742 |
| 28 | 56483938 |
| 29 | 69592895 |
| 30 | 85144755 |
| 31 | 103490896 |
| 32 | 125019312 |
| 33 | 150157073 |
| 34 | 179372865 |
| 35 | 213179610 |