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 | 12 |
| 2 | 60 |
| 3 | 120 |
| 4 | 240 |
| 5 | 420 |
| 6 | 720 |
| 7 | 1320 |
| 8 | 840 |
| 9 | 2640 |
| 10 | 1680 |
| 11 | 3360 |
| 12 | 2520 |
| 13 | 4620 |
| 14 | 7920 |
| 15 | 7560 |
| 16 | 5040 |
| 17 | 10080 |
| 18 | 17160 |
| 19 | 10920 |
| 20 | 9240 |
| 21 | 40320 |
| 22 | 25200 |
| 23 | 28560 |
| 24 | 21840 |
| 25 | 18480 |
| 26 | 60480 |
| 27 | 41580 |
| 28 | 46200 |
| 29 | 36960 |
| 30 | 32760 |
| 31 | 27720 |
| 32 | 78540 |
| 33 | 60060 |
| 34 | 129360 |
| 35 | 134640 |
| 36 | 115920 |
| 37 | 85680 |
| 38 | 65520 |
| 39 | 83160 |