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 | 10 |
| 2 | 56 |
| 3 | 231 |
| 4 | 782 |
| 5 | 2300 |
| 6 | 6085 |
| 7 | 14820 |
| 8 | 33775 |
| 9 | 72905 |
| 10 | 150438 |
| 11 | 298925 |
| 12 | 575333 |
| 13 | 1077748 |
| 14 | 1972851 |
| 15 | 3540913 |
| 16 | 6249235 |
| 17 | 10871723 |
| 18 | 18683233 |
| 19 | 31775031 |
| 20 | 53566369 |
| 21 | 89633545 |
| 22 | 149052839 |
| 23 | 246575109 |
| 24 | 406146248 |
| 25 | 666605513 |
| 26 | 1090907965 |