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 | 14 |
| 3 | 4478 |
| 4 | 330838 |
| 5 | 35085590 |
| 6 | 3411202430 |
| 7 | 340632046678 |
| 8 | 33794298241774 |
| 9 | 3360563350227504 |
| 10 | 334009240038242920 |
| 11 | 33204360051870939552 |
| 12 | 3300767481388100805696 |
| 13 | 328127904170727818697864 |