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 | 8 |
| 5 | 35 |
| 6 | 111 |
| 7 | 287 |
| 8 | 644 |
| 9 | 1302 |
| 10 | 2430 |
| 11 | 4257 |
| 12 | 7084 |
| 13 | 11297 |
| 14 | 17381 |
| 15 | 25935 |
| 16 | 37688 |
| 17 | 53516 |
| 18 | 74460 |
| 19 | 101745 |
| 20 | 136800 |
| 21 | 181279 |
| 22 | 237083 |
| 23 | 306383 |
| 24 | 391644 |
| 25 | 495650 |
| 26 | 621530 |
| 27 | 772785 |
| 28 | 953316 |
| 29 | 1167453 |
| 30 | 1419985 |
| 31 | 1716191 |
| 32 | 2061872 |
| 33 | 2463384 |
| 34 | 2927672 |
| 35 | 3462305 |
| 36 | 4075512 |
| 37 | 4776219 |
| 38 | 5574087 |
| 39 | 6479551 |