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 | 5 |
| 2 | 8 |
| 3 | 4 |
| 4 | 25 |
| 5 | 50 |
| 6 | 98 |
| 7 | 359 |
| 8 | 766 |
| 9 | 1932 |
| 10 | 5677 |
| 11 | 12860 |
| 12 | 34902 |
| 13 | 92923 |
| 14 | 224468 |
| 15 | 609898 |
| 16 | 1569799 |
| 17 | 3969016 |
| 18 | 10617506 |
| 19 | 27213371 |
| 20 | 70541934 |
| 21 | 186417464 |
| 22 | 481204483 |
| 23 | 1261639106 |
| 24 | 3316784004 |
| 25 | 8641317351 |
| 26 | 22770348996 |
| 27 | 59873020940 |
| 28 | 157234586213 |