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 | 2048 |
| 2 | 148352 |
| 3 | 3076180 |
| 4 | 33175486 |
| 5 | 239238888 |
| 6 | 1314160492 |
| 7 | 5937279840 |
| 8 | 23174548666 |
| 9 | 80812754568 |
| 10 | 257860425672 |
| 11 | 766319864440 |
| 12 | 2149806985106 |
| 13 | 5753007728148 |
| 14 | 14807729805472 |
| 15 | 36902750545260 |
| 16 | 89523360235366 |
| 17 | 212335537312668 |
| 18 | 494171055510052 |
| 19 | 1131839140825580 |