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 | 26 |
| 2 | 676 |
| 3 | 1066 |
| 4 | 5804 |
| 5 | 27762 |
| 6 | 119224 |
| 7 | 539576 |
| 8 | 2511348 |
| 9 | 11347860 |
| 10 | 51289536 |
| 11 | 234531890 |
| 12 | 1067836614 |
| 13 | 4847382862 |
| 14 | 22063872636 |
| 15 | 100447611768 |
| 16 | 456793739872 |
| 17 | 2077973014524 |
| 18 | 9455702551722 |
| 19 | 43017605222256 |
| 20 | 195696521320564 |