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 | 0 |
| 1 | 6 |
| 2 | 42 |
| 3 | 102 |
| 4 | 192 |
| 5 | 312 |
| 6 | 462 |
| 7 | 642 |
| 8 | 852 |
| 9 | 1092 |
| 10 | 1362 |
| 11 | 1662 |
| 12 | 1992 |
| 13 | 2352 |
| 14 | 2742 |
| 15 | 3162 |
| 16 | 3612 |
| 17 | 4092 |
| 18 | 4602 |
| 19 | 5142 |
| 20 | 5712 |
| 21 | 6312 |
| 22 | 6942 |
| 23 | 7602 |
| 24 | 8292 |
| 25 | 9012 |
| 26 | 9762 |
| 27 | 10542 |
| 28 | 11352 |
| 29 | 12192 |
| 30 | 13062 |
| 31 | 13962 |
| 32 | 14892 |
| 33 | 15852 |
| 34 | 16842 |
| 35 | 17862 |
| 36 | 18912 |
| 37 | 19992 |
| 38 | 21102 |
| 39 | 22242 |
| 40 | 23412 |
| 41 | 24612 |
| 42 | 25842 |