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 | 3 |
| 1 | 9 |
| 2 | 6 |
| 3 | 18 |
| 4 | 12 |
| 5 | 36 |
| 6 | 24 |
| 7 | 72 |
| 8 | 48 |
| 9 | 144 |
| 10 | 96 |
| 11 | 288 |
| 12 | 192 |
| 13 | 576 |
| 14 | 384 |
| 15 | 1152 |
| 16 | 768 |
| 17 | 2304 |
| 18 | 1536 |
| 19 | 4608 |
| 20 | 3072 |
| 21 | 9216 |
| 22 | 6144 |
| 23 | 18432 |
| 24 | 12288 |
| 25 | 36864 |
| 26 | 24576 |
| 27 | 73728 |
| 28 | 49152 |
| 29 | 147456 |
| 30 | 98304 |
| 31 | 294912 |
| 32 | 196608 |
| 33 | 589824 |
| 34 | 393216 |
| 35 | 1179648 |
| 36 | 786432 |
| 37 | 2359296 |
| 38 | 1572864 |
| 39 | 4718592 |
| 40 | 3145728 |