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 | 2 |
| 2 | 150 |
| 3 | 4210 |
| 4 | 12496 |
| 5 | 43206 |
| 6 | 83046 |
| 7 | 161092 |
| 8 | 202966 |
| 9 | 305068 |
| 10 | 498936 |
| 11 | 633160 |
| 12 | 906426 |
| 13 | 1125418 |
| 14 | 1248412 |
| 15 | 1460566 |
| 16 | 1808478 |
| 17 | 2264752 |
| 18 | 2339136 |
| 19 | 3026112 |
| 20 | 3331266 |
| 21 | 3501748 |
| 22 | 4015168 |
| 23 | 4529520 |
| 24 | 5049852 |
| 25 | 5806336 |
| 26 | 6448536 |
| 27 | 6792726 |
| 28 | 7214610 |