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 | 4 |
| 2 | 6 |
| 3 | 10 |
| 4 | 26 |
| 5 | 64 |
| 6 | 66 |
| 7 | 70 |
| 8 | 102 |
| 9 | 322 |
| 10 | 370 |
| 11 | 570 |
| 12 | 1750 |
| 13 | 1782 |
| 14 | 1974 |
| 15 | 2482 |
| 16 | 6886 |
| 17 | 7782 |
| 18 | 9784 |
| 19 | 20476 |
| 20 | 34826 |
| 21 | 37546 |
| 22 | 46566 |
| 23 | 47800 |
| 24 | 132962 |
| 25 | 184230 |
| 26 | 257930 |
| 27 | 286554 |
| 28 | 370274 |
| 29 | 544852 |
| 30 | 648856 |
| 31 | 2585660 |
| 32 | 2750860 |
| 33 | 3274106 |