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 | 64 |
| 2 | 972 |
| 3 | 2935 |
| 4 | 5657 |
| 5 | 10562 |
| 6 | 20065 |
| 7 | 39037 |
| 8 | 76393 |
| 9 | 148637 |
| 10 | 284937 |
| 11 | 535211 |
| 12 | 981957 |
| 13 | 1757541 |
| 14 | 3068802 |
| 15 | 5231637 |
| 16 | 8719051 |
| 17 | 14227266 |
| 18 | 22765909 |
| 19 | 35780116 |
| 20 | 55314683 |
| 21 | 84233265 |
| 22 | 126509183 |
| 23 | 187608775 |
| 24 | 274993564 |
| 25 | 398773975 |
| 26 | 572555093 |
| 27 | 814524213 |