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 | 7 |
| 2 | 106 |
| 3 | 2061 |
| 4 | 34799 |
| 5 | 601521 |
| 6 | 10443081 |
| 7 | 180623180 |
| 8 | 3127443494 |
| 9 | 54147787428 |
| 10 | 937401735877 |
| 11 | 16229119258691 |
| 12 | 280969835877155 |
| 13 | 4864330622552017 |
| 14 | 84214645085725068 |
| 15 | 1457981042829787092 |
| 16 | 25241554445266482645 |