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 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 0 |
| 8 | 0 |
| 9 | 1 |
| 10 | 5 |
| 11 | 20 |
| 12 | 61 |
| 13 | 160 |
| 14 | 375 |
| 15 | 804 |
| 16 | 1608 |
| 17 | 3038 |
| 18 | 5469 |
| 19 | 9447 |
| 20 | 15746 |
| 21 | 25436 |
| 22 | 39971 |
| 23 | 61289 |
| 24 | 91933 |
| 25 | 135196 |
| 26 | 195284 |
| 27 | 277509 |
| 28 | 388513 |
| 29 | 536518 |
| 30 | 731615 |
| 31 | 986090 |
| 32 | 1314787 |
| 33 | 1735519 |
| 34 | 2269525 |
| 35 | 2941977 |