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 | 7 |
| 3 | 25 |
| 4 | 55 |
| 5 | 115 |
| 6 | 181 |
| 7 | 307 |
| 8 | 439 |
| 9 | 637 |
| 10 | 841 |
| 11 | 1171 |
| 12 | 1447 |
| 13 | 1915 |
| 14 | 2329 |
| 15 | 2881 |
| 16 | 3433 |
| 17 | 4249 |
| 18 | 4879 |
| 19 | 5905 |
| 20 | 6745 |
| 21 | 7861 |
| 22 | 8911 |
| 23 | 10429 |
| 24 | 11557 |
| 25 | 13297 |
| 26 | 14773 |
| 27 | 16663 |
| 28 | 18355 |
| 29 | 20791 |
| 30 | 22495 |
| 31 | 25285 |
| 32 | 27541 |
| 33 | 30361 |
| 34 | 32905 |
| 35 | 36289 |
| 36 | 38845 |
| 37 | 42841 |
| 38 | 46027 |
| 39 | 49987 |
| 40 | 53395 |