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 | 15 |
| 2 | 72 |
| 3 | 220 |
| 4 | 525 |
| 5 | 1071 |
| 6 | 1960 |
| 7 | 3312 |
| 8 | 5265 |
| 9 | 7975 |
| 10 | 11616 |
| 11 | 16380 |
| 12 | 22477 |
| 13 | 30135 |
| 14 | 39600 |
| 15 | 51136 |
| 16 | 65025 |
| 17 | 81567 |
| 18 | 101080 |
| 19 | 123900 |
| 20 | 150381 |
| 21 | 180895 |
| 22 | 215832 |
| 23 | 255600 |
| 24 | 300625 |
| 25 | 351351 |
| 26 | 408240 |
| 27 | 471772 |
| 28 | 542445 |
| 29 | 620775 |
| 30 | 707296 |
| 31 | 802560 |
| 32 | 907137 |
| 33 | 1021615 |