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 | 1 |
| 2 | 37 |
| 3 | 478 |
| 4 | 3614 |
| 5 | 19490 |
| 6 | 82994 |
| 7 | 296438 |
| 8 | 923702 |
| 9 | 2580071 |
| 10 | 6588075 |
| 11 | 15606084 |
| 12 | 34685508 |
| 13 | 72976852 |
| 14 | 146387476 |
| 15 | 281597860 |
| 16 | 521971876 |
| 17 | 936053677 |
| 18 | 1629533233 |
| 19 | 2761788434 |
| 20 | 4568378450 |
| 21 | 7391175350 |
| 22 | 11718183750 |
| 23 | 18235516650 |
| 24 | 27894475050 |
| 25 | 41997225075 |
| 26 | 62305185111 |