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 | 47 |
| 3 | 167 |
| 4 | 359 |
| 5 | 1847 |
| 6 | 3719 |
| 7 | 10607 |
| 8 | 19319 |
| 9 | 97967 |
| 10 | 177239 |
| 11 | 273527 |
| 12 | 657719 |
| 13 | 1042439 |
| 14 | 1104599 |
| 15 | 1329407 |
| 16 | 1515359 |
| 17 | 1745039 |
| 18 | 2042039 |
| 19 | 4464767 |
| 20 | 5013119 |
| 21 | 5148359 |
| 22 | 9740639 |
| 23 | 11095559 |
| 24 | 11377127 |
| 25 | 12538679 |
| 26 | 16024007 |
| 27 | 16410599 |
| 28 | 16752647 |