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 | 91 |
| 2 | 874 |
| 3 | 3411 |
| 4 | 9093 |
| 5 | 40112 |
| 6 | 44252 |
| 7 | 54081 |
| 8 | 67284 |
| 9 | 80224 |
| 10 | 90933 |
| 11 | 91503 |
| 12 | 4961782 |
| 13 | 5400081 |
| 14 | 5726691 |
| 15 | 8750834 |
| 16 | 9076921 |
| 17 | 9155055 |
| 18 | 54000081 |
| 19 | 62023914 |
| 20 | 90766921 |
| 21 | 93079231 |
| 22 | 430770922 |
| 23 | 540000081 |
| 24 | 636355044 |
| 25 | 808618664 |
| 26 | 907666921 |
| 27 | 928709013 |
| 28 | 4050394312 |
| 29 | 4262971312 |