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) |
|---|---|
| 0 | 1 |
| 1 | 19858 |
| 2 | 436140 |
| 3 | 2897747 |
| 4 | 11402579 |
| 5 | 33377536 |
| 6 | 80758518 |
| 7 | 171070425 |
| 8 | 328507157 |
| 9 | 585011614 |
| 10 | 981355696 |
| 11 | 1568220303 |
| 12 | 2407275335 |
| 13 | 3572259692 |
| 14 | 5150061274 |
| 15 | 7241796981 |
| 16 | 9963892713 |
| 17 | 13449163370 |
| 18 | 17847892852 |
| 19 | 23328914059 |
| 20 | 30080688891 |
| 21 | 38312388248 |
| 22 | 48254972030 |
| 23 | 60162269137 |