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 | 1 |
| 2 | 4 |
| 3 | 8 |
| 4 | 15 |
| 5 | 23 |
| 6 | 40 |
| 7 | 59 |
| 8 | 92 |
| 9 | 137 |
| 10 | 202 |
| 11 | 285 |
| 12 | 418 |
| 13 | 577 |
| 14 | 802 |
| 15 | 1106 |
| 16 | 1511 |
| 17 | 2019 |
| 18 | 2724 |
| 19 | 3598 |
| 20 | 4755 |
| 21 | 6226 |
| 22 | 8107 |
| 23 | 10462 |
| 24 | 13523 |
| 25 | 17280 |
| 26 | 22029 |
| 27 | 27953 |
| 28 | 35350 |
| 29 | 44416 |
| 30 | 55763 |
| 31 | 69579 |
| 32 | 86634 |
| 33 | 107459 |
| 34 | 132914 |
| 35 | 163768 |
| 36 | 201475 |
| 37 | 246841 |
| 38 | 301822 |
| 39 | 368033 |
| 40 | 447790 |
| 41 | 543206 |