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 | 1731 |
| 2 | 6936 |
| 3 | 21897 |
| 4 | 57913 |
| 5 | 134164 |
| 6 | 280751 |
| 7 | 542235 |
| 8 | 981675 |
| 9 | 1685165 |
| 10 | 2766870 |
| 11 | 4374561 |
| 12 | 6695649 |
| 13 | 9963718 |
| 14 | 14465557 |
| 15 | 20548691 |
| 16 | 28629411 |
| 17 | 39201303 |
| 18 | 52844276 |
| 19 | 70234089 |
| 20 | 92152377 |
| 21 | 119497176 |
| 22 | 153293947 |
| 23 | 194707099 |
| 24 | 245052011 |
| 25 | 305807553 |