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 | 1 |
| 2 | 14 |
| 3 | 1045 |
| 4 | 10639 |
| 5 | 109228 |
| 6 | 2263784 |
| 7 | 45618455 |
| 8 | 739821272 |
| 9 | 12181204009 |
| 10 | 214913229652 |
| 11 | 3770723150572 |
| 12 | 64742737047855 |
| 13 | 1114199103262826 |
| 14 | 19305756803013227 |
| 15 | 334233068253483784 |
| 16 | 5774144936515374280 |