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) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 2 |
| 3 | 2 |
| 4 | 4 |
| 5 | 8 |
| 6 | 14 |
| 7 | 22 |
| 8 | 36 |
| 9 | 64 |
| 10 | 114 |
| 11 | 198 |
| 12 | 340 |
| 13 | 586 |
| 14 | 1018 |
| 15 | 1772 |
| 16 | 3076 |
| 17 | 5332 |
| 18 | 9248 |
| 19 | 16054 |
| 20 | 27872 |
| 21 | 48376 |
| 22 | 83952 |
| 23 | 145700 |
| 24 | 252888 |
| 25 | 438938 |
| 26 | 761846 |
| 27 | 1322286 |
| 28 | 2295022 |
| 29 | 3983384 |
| 30 | 6913822 |
| 31 | 12000054 |
| 32 | 20828006 |
| 33 | 36150354 |
| 34 | 62744812 |
| 35 | 108903838 |
| 36 | 189020310 |
| 37 | 328075444 |
| 38 | 569428264 |
| 39 | 988335418 |
| 40 | 1715417004 |