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 | 14 |
| 2 | 331 |
| 3 | 12284 |
| 4 | 663061 |
| 5 | 49164554 |
| 6 | 4798037791 |
| 7 | 596372040824 |
| 8 | 91991577140521 |
| 9 | 17244625801225094 |
| 10 | 3861296322290987251 |
| 11 | 1017889493782391701364 |
| 12 | 312043142223584185393981 |
| 13 | 110072908401904868672053634 |
| 14 | 44269461921572566583027776711 |
| 15 | 20136444961077089693182895665904 |