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 | 0 |
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 3 |
| 5 | 11 |
| 6 | 9 |
| 7 | 35 |
| 8 | 33 |
| 9 | 105 |
| 10 | 105 |
| 11 | 339 |
| 12 | 313 |
| 13 | 1035 |
| 14 | 1017 |
| 15 | 3115 |
| 16 | 3099 |
| 17 | 9579 |
| 18 | 9345 |
| 19 | 28947 |
| 20 | 28713 |
| 21 | 86979 |
| 22 | 86825 |
| 23 | 263187 |
| 24 | 260865 |
| 25 | 791577 |
| 26 | 789497 |
| 27 | 2376555 |
| 28 | 2374521 |
| 29 | 7150443 |
| 30 | 7129401 |
| 31 | 21471315 |
| 32 | 21450489 |
| 33 | 64431843 |
| 34 | 64413177 |
| 35 | 193487947 |
| 36 | 193292811 |
| 37 | 580650075 |