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 | 257 |
| 2 | 6560 |
| 3 | 110443 |
| 4 | 2387947 |
| 5 | 9236508 |
| 6 | 6826318 |
| 7 | 112184244 |
| 8 | 674273372 |
| 9 | 571782680 |
| 10 | 8827420195 |
| 11 | 46142113101 |
| 12 | 85760131222 |
| 13 | 287369842623 |
| 14 | 120773832179 |
| 15 | 83209719751 |
| 16 | 1684374218587 |
| 17 | 6358345589299 |
| 18 | 6305601215112 |
| 19 | 5800992744105 |
| 20 | 33960226045484 |
| 21 | 56924554232879 |
| 22 | 11856046381401 |