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 | 10 |
| 2 | 70 |
| 3 | 190 |
| 4 | 1330 |
| 5 | 8170 |
| 6 | 9730 |
| 7 | 24130 |
| 8 | 28462 |
| 9 | 58030 |
| 10 | 98458 |
| 11 | 143830 |
| 12 | 144886 |
| 13 | 327370 |
| 14 | 856786 |
| 15 | 1580230 |
| 16 | 1620130 |
| 17 | 3536470 |
| 18 | 5274970 |
| 19 | 6082490 |
| 20 | 6376126 |
| 21 | 6792710 |
| 22 | 8066170 |
| 23 | 8610610 |
| 24 | 14076910 |
| 25 | 17728930 |
| 26 | 27275158 |
| 27 | 42447406 |
| 28 | 52970386 |
| 29 | 53497978 |
| 30 | 68925130 |