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 | 0 |
| 2 | 5 |
| 3 | 22 |
| 4 | 57 |
| 5 | 116 |
| 6 | 205 |
| 7 | 330 |
| 8 | 497 |
| 9 | 712 |
| 10 | 981 |
| 11 | 1310 |
| 12 | 1705 |
| 13 | 2172 |
| 14 | 2717 |
| 15 | 3346 |
| 16 | 4065 |
| 17 | 4880 |
| 18 | 5797 |
| 19 | 6822 |
| 20 | 7961 |
| 21 | 9220 |
| 22 | 10605 |
| 23 | 12122 |
| 24 | 13777 |
| 25 | 15576 |
| 26 | 17525 |
| 27 | 19630 |
| 28 | 21897 |
| 29 | 24332 |
| 30 | 26941 |
| 31 | 29730 |
| 32 | 32705 |
| 33 | 35872 |
| 34 | 39237 |
| 35 | 42806 |
| 36 | 46585 |
| 37 | 50580 |
| 38 | 54797 |
| 39 | 59242 |
| 40 | 63921 |