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 | 0 |
| 2 | 4132 |
| 3 | 51196 |
| 4 | 368588 |
| 5 | 1399640 |
| 6 | 4875112 |
| 7 | 11953848 |
| 8 | 28779900 |
| 9 | 58731504 |
| 10 | 116157280 |
| 11 | 200181920 |
| 12 | 362242468 |
| 13 | 569517636 |