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) |
|---|---|
| 6 | 1 |
| 7 | 48 |
| 8 | 822 |
| 9 | 9305 |
| 10 | 83590 |
| 11 | 647891 |
| 12 | 4537169 |
| 13 | 29532566 |
| 14 | 182034751 |
| 15 | 1076357002 |
| 16 | 6162251432 |
| 17 | 34394051095 |
| 18 | 188121970788 |
| 19 | 1012370499109 |
| 20 | 5376927101387 |
| 21 | 28254655805724 |
| 22 | 147182871736245 |
| 23 | 761235618312420 |
| 24 | 3914066453608570 |
| 25 | 20027841005048805 |
| 26 | 102071452026321906 |