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 | 2 |
| 4 | 5 |
| 5 | 10 |
| 6 | 11 |
| 7 | 13 |
| 8 | 34 |
| 9 | 47 |
| 10 | 52 |
| 11 | 77 |
| 12 | 88 |
| 13 | 554 |
| 14 | 580 |
| 15 | 1310 |
| 16 | 1505 |
| 17 | 8537 |
| 18 | 15892 |
| 19 | 24022 |
| 20 | 27041 |
| 21 | 37922 |
| 22 | 40033 |
| 23 | 134122 |
| 24 | 165358 |
| 25 | 183760 |