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 | 1 |
| 2 | 27 |
| 3 | 925 |
| 4 | 35069 |
| 5 | 1406679 |
| 6 | 58491537 |
| 7 | 2493656187 |
| 8 | 108280678092 |
| 9 | 4768395658314 |
| 10 | 212335592489544 |
| 11 | 9540877059969102 |
| 12 | 431908789303835976 |
| 13 | 19675192863275361294 |
| 14 | 901089855844979674068 |
| 15 | 41459199062515242868098 |