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) |
|---|---|
| 4 | 1 |
| 5 | 10 |
| 6 | 50 |
| 7 | 175 |
| 8 | 490 |
| 9 | 1176 |
| 10 | 2520 |
| 11 | 4950 |
| 12 | 9075 |
| 13 | 15730 |
| 14 | 26026 |
| 15 | 41405 |
| 16 | 63700 |
| 17 | 95200 |
| 18 | 138720 |
| 19 | 197676 |
| 20 | 276165 |
| 21 | 379050 |
| 22 | 512050 |
| 23 | 681835 |
| 24 | 896126 |
| 25 | 1163800 |
| 26 | 1495000 |
| 27 | 1901250 |
| 28 | 2395575 |
| 29 | 2992626 |
| 30 | 3708810 |
| 31 | 4562425 |
| 32 | 5573800 |
| 33 | 6765440 |
| 34 | 8162176 |
| 35 | 9791320 |
| 36 | 11682825 |
| 37 | 13869450 |