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 | 4 |
| 5 | 13 |
| 6 | 19 |
| 7 | 39 |
| 8 | 62 |
| 9 | 76 |
| 10 | 79 |
| 11 | 109 |
| 12 | 184 |
| 13 | 222 |
| 14 | 265 |
| 15 | 370 |
| 16 | 626 |
| 17 | 670 |
| 18 | 679 |
| 19 | 763 |
| 20 | 1950 |
| 21 | 2174 |
| 22 | 3379 |
| 23 | 7369 |
| 24 | 9087 |
| 25 | 34990 |
| 26 | 47535 |
| 27 | 97970 |