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 | 4 |
| 3 | 7 |
| 4 | 13 |
| 5 | 24 |
| 6 | 43 |
| 7 | 77 |
| 8 | 137 |
| 9 | 241 |
| 10 | 421 |
| 11 | 732 |
| 12 | 1266 |
| 13 | 2178 |
| 14 | 3733 |
| 15 | 6376 |
| 16 | 10858 |
| 17 | 18439 |
| 18 | 31237 |
| 19 | 52804 |
| 20 | 89082 |
| 21 | 150014 |
| 22 | 252206 |
| 23 | 423367 |
| 24 | 709697 |
| 25 | 1188136 |
| 26 | 1986730 |
| 27 | 3318386 |
| 28 | 5536857 |
| 29 | 9229483 |
| 30 | 15370775 |
| 31 | 25576584 |
| 32 | 42524547 |
| 33 | 70649205 |
| 34 | 117290710 |