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 | 509 |
| 2 | 1229 |
| 3 | 1409 |
| 4 | 2131 |
| 5 | 2311 |
| 6 | 2699 |
| 7 | 3539 |
| 8 | 6211 |
| 9 | 6449 |
| 10 | 7411 |
| 11 | 10321 |
| 12 | 10589 |
| 13 | 11549 |
| 14 | 11909 |
| 15 | 12119 |
| 16 | 17159 |
| 17 | 18121 |
| 18 | 19709 |
| 19 | 19889 |
| 20 | 22349 |
| 21 | 22531 |
| 22 | 23011 |
| 23 | 24391 |
| 24 | 26189 |
| 25 | 27479 |
| 26 | 29671 |
| 27 | 30389 |
| 28 | 31771 |
| 29 | 35311 |
| 30 | 41491 |
| 31 | 43649 |
| 32 | 46411 |
| 33 | 54601 |
| 34 | 55229 |
| 35 | 56311 |