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 | 6 |
| 2 | 150 |
| 3 | 726 |
| 4 | 750 |
| 5 | 2310 |
| 6 | 3174 |
| 7 | 3750 |
| 8 | 5046 |
| 9 | 5874 |
| 10 | 6090 |
| 11 | 6930 |
| 12 | 7986 |
| 13 | 10086 |
| 14 | 10374 |
| 15 | 11550 |
| 16 | 16854 |
| 17 | 18270 |
| 18 | 18750 |
| 19 | 20790 |
| 20 | 24378 |
| 21 | 31122 |
| 22 | 34650 |
| 23 | 41334 |
| 24 | 42630 |
| 25 | 47526 |
| 26 | 54810 |
| 27 | 57750 |
| 28 | 62370 |
| 29 | 63618 |
| 30 | 64614 |
| 31 | 73002 |
| 32 | 76614 |
| 33 | 87846 |
| 34 | 93366 |
| 35 | 93750 |
| 36 | 102966 |
| 37 | 103950 |
| 38 | 127890 |
| 39 | 140910 |
| 40 | 146334 |
| 41 | 146370 |
| 42 | 164430 |