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 | 6 |
| 2 | 5908 |
| 3 | 229714 |
| 4 | 3020170 |
| 5 | 21274708 |
| 6 | 102972822 |
| 7 | 384996502 |
| 8 | 1196677486 |
| 9 | 3233011170 |
| 10 | 7831389294 |
| 11 | 17375280238 |
| 12 | 35875950626 |
| 13 | 69754837982 |
| 14 | 128899962066 |
| 15 | 228011800792 |
| 16 | 388342150524 |
| 17 | 639825818930 |
| 18 | 1023746518060 |
| 19 | 1595913984468 |