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 | 15 |
| 5 | 23 |
| 6 | 26 |
| 7 | 81 |
| 8 | 104 |
| 9 | 109 |
| 10 | 111 |
| 11 | 120 |
| 12 | 127 |
| 13 | 135 |
| 14 | 136 |
| 15 | 141 |
| 16 | 142 |
| 17 | 144 |
| 18 | 145 |
| 19 | 146 |
| 20 | 147 |
| 21 | 148 |
| 22 | 5920 |
| 23 | 5943 |
| 24 | 8381 |
| 25 | 8401 |
| 26 | 89953 |
| 27 | 91368 |
| 28 | 267848 |
| 29 | 353014 |