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 | 0 |
| 3 | 0 |
| 4 | 0 |
| 5 | 0 |
| 6 | 0 |
| 7 | 6 |
| 8 | 0 |
| 9 | 0 |
| 10 | 0 |
| 11 | 6 |
| 12 | 6 |
| 13 | 6 |
| 14 | 6 |
| 15 | 24 |
| 16 | 24 |
| 17 | 24 |
| 18 | 36 |
| 19 | 54 |
| 20 | 54 |
| 21 | 120 |
| 22 | 138 |
| 23 | 216 |
| 24 | 240 |
| 25 | 384 |
| 26 | 444 |
| 27 | 528 |
| 28 | 690 |
| 29 | 966 |
| 30 | 1236 |
| 31 | 1602 |
| 32 | 2112 |
| 33 | 2712 |
| 34 | 3522 |
| 35 | 4818 |
| 36 | 6150 |
| 37 | 8094 |
| 38 | 10452 |
| 39 | 13854 |
| 40 | 17784 |
| 41 | 23082 |
| 42 | 29970 |
| 43 | 39438 |
| 44 | 51030 |
| 45 | 66792 |
| 46 | 86502 |
| 47 | 113064 |
| 48 | 147036 |
| 49 | 191952 |
| 50 | 249390 |