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 | 70 |
| 3 | 495 |
| 4 | 1820 |
| 5 | 4845 |
| 6 | 10626 |
| 7 | 20475 |
| 8 | 35960 |
| 9 | 58905 |
| 10 | 91390 |
| 11 | 135751 |
| 12 | 194580 |
| 13 | 270725 |
| 14 | 367290 |
| 15 | 487635 |
| 16 | 635376 |
| 17 | 814385 |
| 18 | 1028790 |
| 19 | 1282975 |
| 20 | 1581580 |
| 21 | 1929501 |
| 22 | 2331890 |
| 23 | 2794155 |
| 24 | 3321960 |
| 25 | 3921225 |
| 26 | 4598126 |
| 27 | 5359095 |
| 28 | 6210820 |
| 29 | 7160245 |
| 30 | 8214570 |
| 31 | 9381251 |
| 32 | 10668000 |
| 33 | 12082785 |