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 | 4 |
| 3 | 11 |
| 4 | 23 |
| 5 | 43 |
| 6 | 82 |
| 7 | 149 |
| 8 | 278 |
| 9 | 471 |
| 10 | 853 |
| 11 | 1378 |
| 12 | 2594 |
| 13 | 4474 |
| 14 | 7999 |
| 15 | 15747 |
| 16 | 27458 |
| 17 | 48615 |
| 18 | 84320 |
| 19 | 166806 |
| 20 | 297146 |
| 21 | 544525 |
| 22 | 973799 |