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 | 11 |
| 2 | 101 |
| 3 | 15641 |
| 4 | 3512981 |
| 5 | 6655541 |
| 6 | 20769311 |
| 7 | 26919791 |
| 8 | 41487071 |
| 9 | 71541641 |
| 10 | 160471601 |
| 11 | 189425981 |
| 12 | 236531921 |
| 13 | 338030591 |
| 14 | 409952351 |
| 15 | 423685721 |
| 16 | 431343461 |
| 17 | 518137091 |
| 18 | 543062621 |
| 19 | 588273221 |
| 20 | 637272191 |
| 21 | 639387311 |
| 22 | 647851571 |
| 23 | 705497951 |
| 24 | 726391571 |
| 25 | 843404201 |
| 26 | 895161341 |
| 27 | 958438751 |
| 28 | 960813851 |
| 29 | 964812461 |
| 30 | 985123961 |