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) |
|---|---|
| 3 | 12 |
| 4 | 54 |
| 5 | 120 |
| 6 | 210 |
| 7 | 324 |
| 8 | 462 |
| 9 | 624 |
| 10 | 810 |
| 11 | 1020 |
| 12 | 1254 |
| 13 | 1512 |
| 14 | 1794 |
| 15 | 2100 |
| 16 | 2430 |
| 17 | 2784 |
| 18 | 3162 |
| 19 | 3564 |
| 20 | 3990 |
| 21 | 4440 |
| 22 | 4914 |
| 23 | 5412 |
| 24 | 5934 |
| 25 | 6480 |
| 26 | 7050 |
| 27 | 7644 |
| 28 | 8262 |
| 29 | 8904 |
| 30 | 9570 |
| 31 | 10260 |
| 32 | 10974 |
| 33 | 11712 |
| 34 | 12474 |
| 35 | 13260 |
| 36 | 14070 |
| 37 | 14904 |
| 38 | 15762 |
| 39 | 16644 |
| 40 | 17550 |
| 41 | 18480 |
| 42 | 19434 |
| 43 | 20412 |
| 44 | 21414 |
| 45 | 22440 |
| 46 | 23490 |
| 47 | 24564 |
| 48 | 25662 |
| 49 | 26784 |
| 50 | 27930 |