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 | 27 |
| 3 | 85 |
| 4 | 139 |
| 5 | 307 |
| 6 | 399 |
| 7 | 765 |
| 8 | 1043 |
| 9 | 1517 |
| 10 | 1889 |
| 11 | 3021 |
| 12 | 3523 |
| 13 | 5299 |
| 14 | 6269 |
| 15 | 7671 |
| 16 | 9209 |
| 17 | 12729 |
| 18 | 14179 |
| 19 | 18995 |
| 20 | 21307 |
| 21 | 24991 |
| 22 | 28303 |
| 23 | 36261 |
| 24 | 39307 |
| 25 | 47541 |
| 26 | 52833 |
| 27 | 61173 |
| 28 | 67113 |
| 29 | 82125 |
| 30 | 86601 |
| 31 | 104655 |
| 32 | 114695 |
| 33 | 128069 |
| 34 | 139213 |
| 35 | 156653 |
| 36 | 165819 |
| 37 | 194591 |
| 38 | 209753 |
| 39 | 230835 |
| 40 | 245457 |
| 41 | 283887 |