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 | 5 |
| 3 | 13 |
| 4 | 34 |
| 5 | 34 |
| 6 | 74 |
| 7 | 73 |
| 8 | 193 |
| 9 | 256 |
| 10 | 793 |
| 11 | 1049 |
| 12 | 2465 |
| 13 | 2857 |
| 14 | 6577 |
| 15 | 8226 |
| 16 | 21348 |
| 17 | 28872 |
| 18 | 74740 |
| 19 | 91970 |
| 20 | 222217 |
| 21 | 268769 |
| 22 | 669265 |
| 23 | 852305 |
| 24 | 2201945 |
| 25 | 2805760 |
| 26 | 7000777 |
| 27 | 8636081 |
| 28 | 21311098 |
| 29 | 26588770 |
| 30 | 67091170 |
| 31 | 85150213 |