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 | 1 |
| 1 | 0 |
| 2 | 0 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 3 |
| 8 | 3 |
| 9 | 4 |
| 10 | 6 |
| 11 | 9 |
| 12 | 12 |
| 13 | 16 |
| 14 | 24 |
| 15 | 33 |
| 16 | 46 |
| 17 | 64 |
| 18 | 91 |
| 19 | 127 |
| 20 | 177 |
| 21 | 249 |
| 22 | 349 |
| 23 | 489 |
| 24 | 684 |
| 25 | 960 |
| 26 | 1345 |
| 27 | 1884 |
| 28 | 2640 |
| 29 | 3700 |
| 30 | 5185 |
| 31 | 7264 |
| 32 | 10180 |
| 33 | 14265 |
| 34 | 19989 |
| 35 | 28009 |
| 36 | 39249 |
| 37 | 54999 |
| 38 | 77067 |
| 39 | 107992 |
| 40 | 151326 |
| 41 | 212049 |
| 42 | 297136 |
| 43 | 416368 |
| 44 | 583444 |
| 45 | 817561 |
| 46 | 1145622 |
| 47 | 1605324 |
| 48 | 2249491 |
| 49 | 3152139 |
| 50 | 4416993 |