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 | 12 |
| 2 | 0 |
| 3 | 16478 |
| 4 | 824052 |
| 5 | 52793160 |
| 6 | 3177012844 |
| 7 | 197373621124 |
| 8 | 12262301470824 |
| 9 | 765844185617960 |
| 10 | 47948372703291720 |
| 11 | 3007592277730507060 |
| 12 | 188906442508764876656 |
| 13 | 11876939646231731080510 |
| 14 | 747292579695048713129724 |