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 | 12 |
| 3 | 24 |
| 4 | 36 |
| 5 | 60 |
| 6 | 96 |
| 7 | 156 |
| 8 | 252 |
| 9 | 408 |
| 10 | 660 |
| 11 | 1068 |
| 12 | 1728 |
| 13 | 2796 |
| 14 | 4524 |
| 15 | 7320 |
| 16 | 11844 |
| 17 | 19164 |
| 18 | 31008 |
| 19 | 50172 |
| 20 | 81180 |
| 21 | 131352 |
| 22 | 212532 |
| 23 | 343884 |
| 24 | 556416 |
| 25 | 900300 |
| 26 | 1456716 |
| 27 | 2357016 |
| 28 | 3813732 |
| 29 | 6170748 |
| 30 | 9984480 |
| 31 | 16155228 |
| 32 | 26139708 |
| 33 | 42294936 |
| 34 | 68434644 |
| 35 | 110729580 |
| 36 | 179164224 |
| 37 | 289893804 |
| 38 | 469058028 |
| 39 | 758951832 |
| 40 | 1228009860 |