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 | 3 |
| 2 | 7 |
| 3 | 61 |
| 4 | 79 |
| 5 | 619 |
| 6 | 1669 |
| 7 | 4093 |
| 8 | 822631 |
| 9 | 1324783 |
| 10 | 2411797 |
| 11 | 2588869 |
| 12 | 2778877 |
| 13 | 3243589 |
| 14 | 3636631 |
| 15 | 3736477 |
| 16 | 5527189 |
| 17 | 6115717 |
| 18 | 6405943 |
| 19 | 8720191 |
| 20 | 9005989 |
| 21 | 12752029 |
| 22 | 16056031 |
| 23 | 16589317 |
| 24 | 18087991 |
| 25 | 21743551 |
| 26 | 25230511 |
| 27 | 29343871 |
| 28 | 34586131 |
| 29 | 37736431 |
| 30 | 39150037 |
| 31 | 40056229 |