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 | 129 |
| 2 | 2305 |
| 3 | 16513 |
| 4 | 73089 |
| 5 | 241153 |
| 6 | 653185 |
| 7 | 1535745 |
| 8 | 3246337 |
| 9 | 6316417 |
| 10 | 11500545 |
| 11 | 19831681 |
| 12 | 32682625 |
| 13 | 51833601 |
| 14 | 79545985 |
| 15 | 118642177 |
| 16 | 172591617 |
| 17 | 245602945 |
| 18 | 342722305 |
| 19 | 469937793 |
| 20 | 634290049 |
| 21 | 843988993 |
| 22 | 1108536705 |
| 23 | 1438856449 |