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 | 22 |
| 2 | 169 |
| 3 | 707 |
| 4 | 2164 |
| 5 | 5573 |
| 6 | 12975 |
| 7 | 28346 |
| 8 | 59231 |
| 9 | 119555 |
| 10 | 234348 |
| 11 | 447489 |
| 12 | 834107 |
| 13 | 1520016 |
| 14 | 2711565 |
| 15 | 4740623 |
| 16 | 8131175 |
| 17 | 13696273 |
| 18 | 22676975 |
| 19 | 36938539 |
| 20 | 59243658 |
| 21 | 93628083 |
| 22 | 145910759 |
| 23 | 224378788 |
| 24 | 340697347 |
| 25 | 511106363 |
| 26 | 757979538 |
| 27 | 1111837505 |