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 | 1 |
| 1 | 9 |
| 2 | 39 |
| 3 | 119 |
| 4 | 294 |
| 5 | 630 |
| 6 | 1218 |
| 7 | 2178 |
| 8 | 3663 |
| 9 | 5863 |
| 10 | 9009 |
| 11 | 13377 |
| 12 | 19292 |
| 13 | 27132 |
| 14 | 37332 |
| 15 | 50388 |
| 16 | 66861 |
| 17 | 87381 |
| 18 | 112651 |
| 19 | 143451 |
| 20 | 180642 |
| 21 | 225170 |
| 22 | 278070 |
| 23 | 340470 |
| 24 | 413595 |
| 25 | 498771 |
| 26 | 597429 |
| 27 | 711109 |
| 28 | 841464 |
| 29 | 990264 |
| 30 | 1159400 |
| 31 | 1350888 |
| 32 | 1566873 |
| 33 | 1809633 |
| 34 | 2081583 |
| 35 | 2385279 |