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) |
|---|---|
| 4 | 12 |
| 5 | 48 |
| 6 | 120 |
| 7 | 384 |
| 8 | 1068 |
| 9 | 2472 |
| 10 | 4896 |
| 11 | 9072 |
| 12 | 15516 |
| 13 | 25608 |
| 14 | 40296 |
| 15 | 61608 |
| 16 | 91068 |
| 17 | 131640 |
| 18 | 185136 |
| 19 | 255960 |
| 20 | 346860 |
| 21 | 463248 |
| 22 | 608088 |
| 23 | 789240 |
| 24 | 1010316 |
| 25 | 1280544 |
| 26 | 1604832 |
| 27 | 1994064 |
| 28 | 2454012 |
| 29 | 2998656 |
| 30 | 3633912 |
| 31 | 4376064 |
| 32 | 5232972 |
| 33 | 6223080 |
| 34 | 7354896 |