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 | 4 |
| 3 | 10 |
| 4 | 29 |
| 5 | 92 |
| 6 | 310 |
| 7 | 1088 |
| 8 | 3931 |
| 9 | 14518 |
| 10 | 54551 |
| 11 | 207856 |
| 12 | 801202 |
| 13 | 3118532 |
| 14 | 12239732 |
| 15 | 48385852 |
| 16 | 192483953 |
| 17 | 769974110 |
| 18 | 3095236066 |
| 19 | 12497442266 |
| 20 | 50660112478 |
| 21 | 206093561590 |
| 22 | 841151382755 |
| 23 | 3443278744832 |
| 24 | 14133534466258 |