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 | 7 |
| 6 | 8 |
| 7 | 10 |
| 8 | 15 |
| 9 | 19 |
| 10 | 41 |
| 11 | 59 |
| 12 | 61 |
| 13 | 105 |
| 14 | 160 |
| 15 | 661 |
| 16 | 2653 |
| 17 | 3069 |
| 18 | 3943 |
| 19 | 4053 |
| 20 | 4998 |
| 21 | 8275 |
| 22 | 9158 |
| 23 | 11164 |
| 24 | 43592 |
| 25 | 59961 |