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 | 21 |
| 2 | 96 |
| 3 | 476 |
| 4 | 1215 |
| 5 | 3387 |
| 6 | 7168 |
| 7 | 15724 |
| 8 | 28125 |
| 9 | 51895 |
| 10 | 85536 |
| 11 | 143052 |
| 12 | 218491 |
| 13 | 337869 |
| 14 | 491520 |
| 15 | 721208 |
| 16 | 1003833 |
| 17 | 1407681 |
| 18 | 1900000 |
| 19 | 2578060 |
| 20 | 3382071 |
| 21 | 4457431 |
| 22 | 5723136 |
| 23 | 7375716 |
| 24 | 9282325 |
| 25 | 11720787 |
| 26 | 14521248 |
| 27 | 18038972 |
| 28 | 22021875 |
| 29 | 26948985 |
| 30 | 32505856 |