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 | 19 |
| 2 | 1028 |
| 3 | 63326 |
| 4 | 4417267 |
| 5 | 336418691 |
| 6 | 27095099730 |
| 7 | 2264740360646 |
| 8 | 194526458511192 |
| 9 | 17050085068702458 |
| 10 | 1517704371492095702 |
| 11 | 136758640772944755122 |
| 12 | 12445444666179480674989 |
| 13 | 1141852084948606732236114 |
| 14 | 105483948921834512942168239 |