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 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 2 |
| 5 | 3 |
| 6 | 4 |
| 7 | 5 |
| 8 | 8 |
| 9 | 13 |
| 10 | 20 |
| 11 | 29 |
| 12 | 45 |
| 13 | 73 |
| 14 | 118 |
| 15 | 185 |
| 16 | 293 |
| 17 | 475 |
| 18 | 778 |
| 19 | 1263 |
| 20 | 2047 |
| 21 | 3345 |
| 22 | 5512 |
| 23 | 9085 |
| 24 | 14957 |
| 25 | 24683 |
| 26 | 40918 |
| 27 | 67987 |
| 28 | 113016 |
| 29 | 188053 |
| 30 | 313608 |
| 31 | 524041 |
| 32 | 876657 |
| 33 | 1467797 |
| 34 | 2460644 |
| 35 | 4130893 |
| 36 | 6942726 |
| 37 | 11678687 |
| 38 | 19663068 |
| 39 | 33139295 |
| 40 | 55904339 |
| 41 | 94384167 |
| 42 | 159470488 |