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 | 256 |
| 2 | 1526 |
| 3 | 15242 |
| 4 | 106442 |
| 5 | 534598 |
| 6 | 2091240 |
| 7 | 6776037 |
| 8 | 18992711 |
| 9 | 47486564 |
| 10 | 108285671 |
| 11 | 228948164 |
| 12 | 454458311 |
| 13 | 855154436 |
| 14 | 1537112039 |
| 15 | 2655445796 |
| 16 | 4431034439 |
| 17 | 7171212836 |
| 18 | 11295015911 |
| 19 | 17363599364 |
| 20 | 26116502471 |
| 21 | 38514458564 |
| 22 | 55789499111 |
| 23 | 79503137636 |
| 24 | 111613460039 |