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 | 42 |
| 2 | 1321 |
| 3 | 2352 |
| 4 | 2924 |
| 5 | 77922 |
| 6 | 4822 |
| 7 | 2310 |
| 8 | 81212 |
| 9 | 19730 |
| 10 | 331637 |
| 11 | 340640 |
| 12 | 11158 |
| 13 | 13838 |
| 14 | 13690 |
| 15 | 14476 |
| 16 | 709992 |
| 17 | 17990 |
| 18 | 19518 |
| 19 | 20830 |
| 20 | 2277394 |
| 21 | 62350 |
| 22 | 82484 |
| 23 | 76962 |
| 24 | 84852 |
| 25 | 15407670 |
| 26 | 87388 |
| 27 | 90636 |
| 28 | 408240 |
| 29 | 14526794 |
| 30 | 7023466 |
| 31 | 272792 |
| 32 | 117864 |
| 33 | 293946 |
| 34 | 40034157 |
| 35 | 386674 |
| 36 | 168172 |
| 37 | 136472 |
| 38 | 40847194 |
| 39 | 729008 |
| 40 | 768646 |