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 | 23 |
| 2 | 199 |
| 3 | 523 |
| 4 | 1669 |
| 5 | 4297 |
| 6 | 9551 |
| 7 | 16141 |
| 8 | 28229 |
| 9 | 35617 |
| 10 | 43331 |
| 11 | 162143 |
| 12 | 31397 |
| 13 | 188029 |
| 14 | 461717 |
| 15 | 404851 |
| 16 | 360653 |
| 17 | 1444309 |
| 18 | 2238823 |
| 19 | 492113 |
| 20 | 1895359 |
| 21 | 1671781 |
| 22 | 1357201 |
| 23 | 3826019 |
| 24 | 11981443 |
| 25 | 13626257 |
| 26 | 17983717 |
| 27 | 39175217 |
| 28 | 37305713 |
| 29 | 52721113 |