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 | 127 |
| 2 | 827 |
| 3 | 6427 |
| 4 | 12527 |
| 5 | 34327 |
| 6 | 219727 |
| 7 | 491327 |
| 8 | 1562527 |
| 9 | 2438927 |
| 10 | 3276827 |
| 11 | 8518427 |
| 12 | 16637527 |
| 13 | 22698127 |
| 14 | 43897627 |
| 15 | 45653327 |
| 16 | 51200027 |
| 17 | 77868827 |
| 18 | 119101627 |
| 19 | 129502927 |
| 20 | 140492827 |
| 21 | 156089627 |
| 22 | 177156127 |
| 23 | 190662427 |
| 24 | 251545627 |
| 25 | 257135327 |