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 | 0 |
| 2 | 10 |
| 3 | 40 |
| 4 | 60 |
| 5 | 120 |
| 6 | 180 |
| 7 | 527 |
| 8 | 408 |
| 9 | 697 |
| 10 | 1020 |
| 11 | 1680 |
| 12 | 2016 |
| 13 | 2952 |
| 14 | 2419 |
| 15 | 3608 |
| 16 | 4879 |
| 17 | 6902 |
| 18 | 5916 |
| 19 | 10703 |
| 20 | 9240 |
| 21 | 12397 |
| 22 | 15708 |
| 23 | 20400 |
| 24 | 22800 |
| 25 | 22800 |
| 26 | 22800 |
| 27 | 28100 |
| 28 | 28100 |
| 29 | 36249 |
| 30 | 40119 |
| 31 | 59520 |
| 32 | 54560 |
| 33 | 54560 |
| 34 | 65280 |
| 35 | 65280 |
| 36 | 76640 |
| 37 | 108744 |
| 38 | 101455 |
| 39 | 101455 |
| 40 | 117018 |
| 41 | 141372 |
| 42 | 151368 |
| 43 | 178716 |