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 | 1 |
| 5 | 2 |
| 6 | 4 |
| 7 | 8 |
| 8 | 14 |
| 9 | 23 |
| 10 | 38 |
| 11 | 65 |
| 12 | 117 |
| 13 | 214 |
| 14 | 391 |
| 15 | 708 |
| 16 | 1278 |
| 17 | 2318 |
| 18 | 4238 |
| 19 | 7803 |
| 20 | 14419 |
| 21 | 26684 |
| 22 | 49433 |
| 23 | 91736 |
| 24 | 170656 |
| 25 | 318280 |
| 26 | 594905 |
| 27 | 1113868 |
| 28 | 2088554 |
| 29 | 3921505 |
| 30 | 7373367 |
| 31 | 13883045 |
| 32 | 26174600 |
| 33 | 49408932 |
| 34 | 93372078 |
| 35 | 176637791 |
| 36 | 334491586 |
| 37 | 634023965 |
| 38 | 1202894908 |
| 39 | 2284187117 |