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 | 0 |
| 1 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 0 |
| 6 | 1 |
| 7 | 1 |
| 8 | 1 |
| 9 | 1 |
| 10 | 5 |
| 11 | 4 |
| 12 | 9 |
| 13 | 13 |
| 14 | 23 |
| 15 | 29 |
| 16 | 67 |
| 17 | 94 |
| 18 | 179 |
| 19 | 285 |
| 20 | 503 |
| 21 | 795 |
| 22 | 1503 |
| 23 | 2469 |
| 24 | 4457 |
| 25 | 7624 |
| 26 | 13475 |
| 27 | 23027 |
| 28 | 41437 |
| 29 | 72165 |
| 30 | 128905 |
| 31 | 227510 |
| 32 | 405301 |
| 33 | 715078 |
| 34 | 1280127 |
| 35 | 2279393 |
| 36 | 4086591 |
| 37 | 7316698 |
| 38 | 13139958 |
| 39 | 23551957 |
| 40 | 42383667 |
| 41 | 76278547 |
| 42 | 137609116 |
| 43 | 248447221 |
| 44 | 449201368 |
| 45 | 812315229 |
| 46 | 1470997501 |