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 | 10 |
| 3 | 93 |
| 4 | 1020 |
| 5 | 13269 |
| 6 | 198990 |
| 7 | 3383145 |
| 8 | 64276920 |
| 9 | 1349846505 |
| 10 | 31046064210 |
| 11 | 776157686325 |
| 12 | 20956154152500 |
| 13 | 607730434609725 |
| 14 | 18839602224969750 |
| 15 | 621707822126431425 |
| 16 | 21759750056864358000 |
| 17 | 805111392478121276625 |