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 | 402 |
| 3 | 26226 |
| 4 | 1449814 |
| 5 | 85715676 |
| 6 | 5075612300 |
| 7 | 305391845288 |
| 8 | 18488589657334 |
| 9 | 1126075588671672 |
| 10 | 68870780949040304 |
| 11 | 4226950743201669212 |
| 12 | 260180180647806426762 |
| 13 | 16054794836399649515928 |
| 14 | 992844716266821792438782 |