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) |
|---|---|
| 3 | 1 |
| 4 | 6 |
| 5 | 20 |
| 6 | 53 |
| 7 | 121 |
| 8 | 249 |
| 9 | 471 |
| 10 | 836 |
| 11 | 1409 |
| 12 | 2276 |
| 13 | 3544 |
| 14 | 5350 |
| 15 | 7862 |
| 16 | 11286 |
| 17 | 15866 |
| 18 | 21896 |
| 19 | 29721 |
| 20 | 39746 |
| 21 | 52436 |
| 22 | 68331 |
| 23 | 88047 |
| 24 | 112287 |
| 25 | 141841 |
| 26 | 177604 |
| 27 | 220577 |
| 28 | 271880 |
| 29 | 332752 |
| 30 | 404572 |
| 31 | 488860 |
| 32 | 587292 |
| 33 | 701700 |
| 34 | 834096 |
| 35 | 986673 |
| 36 | 1161822 |
| 37 | 1362132 |