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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 5 |
| 5 | 6 |
| 6 | 7 |
| 7 | 11 |
| 8 | 21 |
| 9 | 30 |
| 10 | 68 |
| 11 | 73 |
| 12 | 169 |
| 13 | 176 |
| 14 | 345 |
| 15 | 823 |
| 16 | 1021 |
| 17 | 1191 |
| 18 | 2073 |
| 19 | 2755 |
| 20 | 10717 |
| 21 | 14673 |
| 22 | 16754 |
| 23 | 17606 |
| 24 | 81029 |
| 25 | 120851 |
| 26 | 167965 |
| 27 | 200408 |