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 | 397912927 |
| 2 | 5449646691 |
| 3 | 7987762047 |
| 4 | 8408836868 |
| 5 | 8416865813 |
| 6 | 14311910772 |
| 7 | 95358760419 |
| 8 | 95359835871 |
| 9 | 119207613951 |
| 10 | 119319977811 |
| 11 | 178002991683 |
| 12 | 181182645587 |
| 13 | 268593608191 |
| 14 | 780359955604 |
| 15 | 781941158165 |
| 16 | 802715724229 |
| 17 | 985373000485 |
| 18 | 986970420491 |
| 19 | 1068017311927 |
| 20 | 1068025296336 |