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) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 18 |
| 4 | 40 |
| 5 | 80 |
| 6 | 135 |
| 7 | 217 |
| 8 | 320 |
| 9 | 459 |
| 10 | 625 |
| 11 | 836 |
| 12 | 1080 |
| 13 | 1378 |
| 14 | 1715 |
| 15 | 2115 |
| 16 | 2560 |
| 17 | 3077 |
| 18 | 3645 |
| 19 | 4294 |
| 20 | 5000 |
| 21 | 5796 |
| 22 | 6655 |
| 23 | 7613 |
| 24 | 8640 |
| 25 | 9775 |
| 26 | 10985 |
| 27 | 12312 |
| 28 | 13720 |
| 29 | 15254 |
| 30 | 16875 |
| 31 | 18631 |
| 32 | 20480 |
| 33 | 22473 |
| 34 | 24565 |
| 35 | 26810 |
| 36 | 29160 |
| 37 | 31672 |
| 38 | 34295 |
| 39 | 37089 |
| 40 | 40000 |
| 41 | 43091 |
| 42 | 46305 |
| 43 | 49708 |