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 | 9 |
| 3 | 27 |
| 4 | 75 |
| 5 | 125 |
| 6 | 269 |
| 7 | 367 |
| 8 | 623 |
| 9 | 866 |
| 10 | 1266 |
| 11 | 1508 |
| 12 | 2372 |
| 13 | 2710 |
| 14 | 3494 |
| 15 | 4394 |
| 16 | 5674 |
| 17 | 6252 |
| 18 | 8196 |
| 19 | 8918 |
| 20 | 11318 |
| 21 | 13082 |
| 22 | 15018 |
| 23 | 16076 |
| 24 | 20684 |
| 25 | 22559 |
| 26 | 25263 |
| 27 | 28179 |
| 28 | 32883 |
| 29 | 34565 |
| 30 | 41765 |
| 31 | 43687 |
| 32 | 49831 |
| 33 | 54187 |
| 34 | 58811 |
| 35 | 63711 |
| 36 | 75375 |
| 37 | 78113 |
| 38 | 83889 |
| 39 | 89973 |
| 40 | 102773 |
| 41 | 106135 |