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 | 3 |
| 2 | 11 |
| 3 | 36 |
| 4 | 363 |
| 5 | 1095 |
| 6 | 1271283 |
| 7 | 3687839 |
| 8 | 34642771 |
| 9 | 3705851211 |
| 10 | 133181080239 |
| 11 | 365754039996 |
| 12 | 127034546483126864 |
| 13 | 1333271810847736239 |
| 14 | 4001669872957554920 |