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 | 0 |
| 5 | 0 |
| 6 | 1 |
| 7 | 2 |
| 8 | 3 |
| 9 | 5 |
| 10 | 9 |
| 11 | 14 |
| 12 | 24 |
| 13 | 38 |
| 14 | 62 |
| 15 | 101 |
| 16 | 164 |
| 17 | 266 |
| 18 | 430 |
| 19 | 696 |
| 20 | 1127 |
| 21 | 1824 |
| 22 | 2951 |
| 23 | 4776 |
| 24 | 7728 |
| 25 | 12504 |
| 26 | 20232 |
| 27 | 32736 |
| 28 | 52968 |
| 29 | 85704 |
| 30 | 138673 |
| 31 | 224378 |
| 32 | 363051 |
| 33 | 587429 |
| 34 | 950481 |
| 35 | 1537910 |
| 36 | 2488392 |
| 37 | 4026302 |
| 38 | 6514694 |
| 39 | 10540997 |
| 40 | 17055692 |
| 41 | 27596690 |
| 42 | 44652382 |