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 | 120 |
| 2 | 1320 |
| 3 | 2760 |
| 4 | 3480 |
| 5 | 3720 |
| 6 | 4920 |
| 7 | 5160 |
| 8 | 5640 |
| 9 | 6360 |
| 10 | 7080 |
| 11 | 7320 |
| 12 | 8040 |
| 13 | 8520 |
| 14 | 8760 |
| 15 | 9480 |
| 16 | 9960 |
| 17 | 10680 |
| 18 | 11640 |
| 19 | 12120 |
| 20 | 12360 |
| 21 | 12840 |
| 22 | 13080 |
| 23 | 13560 |
| 24 | 14520 |
| 25 | 15240 |
| 26 | 15720 |
| 27 | 16440 |
| 28 | 16680 |
| 29 | 17880 |
| 30 | 18120 |
| 31 | 18840 |
| 32 | 19560 |
| 33 | 20040 |
| 34 | 20760 |
| 35 | 21480 |
| 36 | 21720 |
| 37 | 22920 |
| 38 | 23160 |
| 39 | 23640 |
| 40 | 23880 |