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 | 2 |
| 4 | 3 |
| 5 | 5 |
| 6 | 9 |
| 7 | 15 |
| 8 | 26 |
| 9 | 45 |
| 10 | 78 |
| 11 | 135 |
| 12 | 234 |
| 13 | 406 |
| 14 | 704 |
| 15 | 1222 |
| 16 | 2120 |
| 17 | 3679 |
| 18 | 6385 |
| 19 | 11081 |
| 20 | 19232 |
| 21 | 33379 |
| 22 | 57933 |
| 23 | 100550 |
| 24 | 174519 |
| 25 | 302903 |
| 26 | 525734 |
| 27 | 912493 |
| 28 | 1583775 |
| 29 | 2748893 |
| 30 | 4771144 |
| 31 | 8281088 |
| 32 | 14373165 |
| 33 | 24946955 |
| 34 | 43299485 |
| 35 | 75153286 |
| 36 | 130440740 |
| 37 | 226401112 |
| 38 | 392955956 |
| 39 | 682038999 |
| 40 | 1183789679 |
| 41 | 2054659669 |
| 42 | 3566196321 |
| 43 | 6189714276 |