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) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 2 |
| 3 | 11 |
| 4 | 8 |
| 5 | 6 |
| 6 | 55 |
| 7 | 44 |
| 8 | 36 |
| 9 | 30 |
| 10 | 375 |
| 11 | 320 |
| 12 | 276 |
| 13 | 240 |
| 14 | 210 |
| 15 | 3731 |
| 16 | 3356 |
| 17 | 3036 |
| 18 | 2760 |
| 19 | 2520 |
| 20 | 2310 |
| 21 | 47743 |
| 22 | 44012 |
| 23 | 40656 |
| 24 | 37620 |
| 25 | 34860 |
| 26 | 32340 |
| 27 | 30030 |
| 28 | 777771 |
| 29 | 730028 |
| 30 | 686016 |
| 31 | 645360 |
| 32 | 607740 |
| 33 | 572880 |
| 34 | 540540 |
| 35 | 510510 |
| 36 | 14770535 |
| 37 | 13992764 |
| 38 | 13262736 |
| 39 | 12576720 |
| 40 | 11931360 |
| 41 | 11323620 |
| 42 | 10750740 |
| 43 | 10210200 |
| 44 | 9699690 |