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 | 2 |
| 1 | 3 |
| 2 | 5 |
| 3 | 10 |
| 4 | 26 |
| 5 | 96 |
| 6 | 553 |
| 7 | 5461 |
| 8 | 100709 |
| 9 | 3718354 |
| 10 | 289725509 |
| 11 | 49513793526 |
| 12 | 19089032278261 |
| 13 | 16951604697397302 |
| 14 | 35231087224279091310 |
| 15 | 173550485517380958360611 |
| 16 | 2047581288200721764035942914 |