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) |
|---|---|
| 1 | 0 |
| 2 | 3 |
| 3 | 12 |
| 4 | 43 |
| 5 | 48 |
| 6 | 142 |
| 7 | 172 |
| 8 | 192 |
| 9 | 427 |
| 10 | 568 |
| 11 | 688 |
| 12 | 768 |
| 13 | 1708 |
| 14 | 2272 |
| 15 | 2752 |
| 16 | 3072 |
| 17 | 6832 |
| 18 | 9088 |
| 19 | 11008 |
| 20 | 12288 |
| 21 | 27328 |
| 22 | 36352 |
| 23 | 44032 |
| 24 | 49152 |
| 25 | 109312 |
| 26 | 145408 |
| 27 | 176128 |
| 28 | 196608 |
| 29 | 437248 |
| 30 | 581632 |
| 31 | 704512 |
| 32 | 786432 |
| 33 | 1748992 |
| 34 | 2326528 |
| 35 | 2818048 |
| 36 | 3145728 |
| 37 | 6995968 |
| 38 | 9306112 |
| 39 | 11272192 |