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 | 12 |
| 2 | 36 |
| 3 | 72 |
| 4 | 120 |
| 5 | 180 |
| 6 | 252 |
| 7 | 336 |
| 8 | 432 |
| 9 | 540 |
| 10 | 660 |
| 11 | 792 |
| 12 | 936 |
| 13 | 1092 |
| 14 | 1260 |
| 15 | 1440 |
| 16 | 1632 |
| 17 | 1836 |
| 18 | 2052 |
| 19 | 2280 |
| 20 | 2520 |
| 21 | 2772 |
| 22 | 3036 |
| 23 | 3312 |
| 24 | 3600 |
| 25 | 3900 |
| 26 | 4212 |
| 27 | 4536 |
| 28 | 4872 |
| 29 | 5220 |
| 30 | 5580 |
| 31 | 5952 |
| 32 | 6336 |
| 33 | 6732 |
| 34 | 7140 |
| 35 | 7560 |
| 36 | 7992 |
| 37 | 8436 |
| 38 | 8892 |
| 39 | 9360 |
| 40 | 9840 |
| 41 | 10332 |
| 42 | 10836 |
| 43 | 11352 |