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 | 20 |
| 2 | 118 |
| 3 | 354 |
| 4 | 788 |
| 5 | 1480 |
| 6 | 2490 |
| 7 | 3878 |
| 8 | 5704 |
| 9 | 8028 |
| 10 | 10910 |
| 11 | 14410 |
| 12 | 18588 |
| 13 | 23504 |
| 14 | 29218 |
| 15 | 35790 |
| 16 | 43280 |
| 17 | 51748 |
| 18 | 61254 |
| 19 | 71858 |
| 20 | 83620 |
| 21 | 96600 |
| 22 | 110858 |
| 23 | 126454 |
| 24 | 143448 |
| 25 | 161900 |
| 26 | 181870 |
| 27 | 203418 |
| 28 | 226604 |
| 29 | 251488 |
| 30 | 278130 |
| 31 | 306590 |
| 32 | 336928 |
| 33 | 369204 |
| 34 | 403478 |
| 35 | 439810 |
| 36 | 478260 |
| 37 | 518888 |