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 | 49 |
| 3 | 34 |
| 4 | 173 |
| 5 | 431 |
| 6 | 1116 |
| 7 | 2562 |
| 8 | 6711 |
| 9 | 17405 |
| 10 | 48462 |
| 11 | 125671 |
| 12 | 334571 |
| 13 | 901387 |
| 14 | 2398458 |
| 15 | 6398293 |
| 16 | 17158639 |
| 17 | 45911441 |
| 18 | 122885609 |
| 19 | 329214517 |
| 20 | 881849126 |
| 21 | 2361859125 |
| 22 | 6328533398 |
| 23 | 16955926709 |
| 24 | 45429854362 |
| 25 | 121730159805 |
| 26 | 326179436515 |