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 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 11 |
| 10 | 14 |
| 11 | 15 |
| 12 | 23 |
| 13 | 24 |
| 14 | 32 |
| 15 | 56 |
| 16 | 96 |
| 17 | 128 |
| 18 | 224 |
| 19 | 384 |
| 20 | 512 |
| 21 | 896 |
| 22 | 1536 |
| 23 | 2048 |
| 24 | 3584 |
| 25 | 6144 |
| 26 | 8192 |
| 27 | 14336 |
| 28 | 24576 |
| 29 | 32768 |
| 30 | 57344 |
| 31 | 98304 |
| 32 | 131072 |
| 33 | 229376 |
| 34 | 393216 |
| 35 | 524288 |
| 36 | 917504 |
| 37 | 1572864 |
| 38 | 2097152 |
| 39 | 3670016 |
| 40 | 6291456 |
| 41 | 8388608 |
| 42 | 14680064 |