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 | 8 |
| 3 | 66 |
| 4 | 488 |
| 5 | 3360 |
| 6 | 23132 |
| 7 | 165550 |
| 8 | 1262132 |
| 9 | 10302943 |
| 10 | 88755142 |
| 11 | 788594730 |
| 12 | 7086051536 |
| 13 | 63890207069 |
| 14 | 581627969769 |
| 15 | 5421588729745 |
| 16 | 52259542704256 |