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 | 3 |
| 2 | 4 |
| 3 | 5 |
| 4 | 6 |
| 5 | 8 |
| 6 | 22 |
| 7 | 23 |
| 8 | 24 |
| 9 | 35 |
| 10 | 73 |
| 11 | 83 |
| 12 | 147 |
| 13 | 553 |
| 14 | 1098 |
| 15 | 1115 |
| 16 | 1542 |
| 17 | 2097 |
| 18 | 2149 |
| 19 | 8712 |
| 20 | 19965 |
| 21 | 25046 |
| 22 | 30987 |
| 23 | 38635 |