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 | 4 |
| 5 | 6 |
| 6 | 14 |
| 7 | 15 |
| 8 | 21 |
| 9 | 50 |
| 10 | 92 |
| 11 | 201 |
| 12 | 203 |
| 13 | 292 |
| 14 | 479 |
| 15 | 897 |
| 16 | 1424 |
| 17 | 1530 |
| 18 | 1654 |
| 19 | 2001 |
| 20 | 2106 |
| 21 | 2183 |
| 22 | 16780 |
| 23 | 20001 |
| 24 | 20993 |
| 25 | 28377 |
| 26 | 89777 |
| 27 | 200001 |
| 28 | 219083 |
| 29 | 501474 |
| 30 | 1620660 |
| 31 | 1651754 |
| 32 | 2000001 |
| 33 | 14842995 |
| 34 | 17101809 |
| 35 | 20000001 |
| 36 | 21147906 |
| 37 | 21855108 |
| 38 | 22012038 |
| 39 | 29287052 |