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 | 0 |
| 2 | 1 |
| 3 | 4 |
| 4 | 7 |
| 5 | 8 |
| 6 | 9 |
| 7 | 13 |
| 8 | 16 |
| 9 | 28 |
| 10 | 54 |
| 11 | 86 |
| 12 | 129 |
| 13 | 190 |
| 14 | 351 |
| 15 | 466 |
| 16 | 697 |
| 17 | 938 |
| 18 | 1510 |
| 19 | 2748 |
| 20 | 2878 |
| 21 | 3396 |
| 22 | 4057 |
| 23 | 4384 |
| 24 | 5534 |
| 25 | 7069 |
| 26 | 10364 |