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 | 2 |
| 2 | 4 |
| 3 | 6 |
| 4 | 11 |
| 5 | 16 |
| 6 | 28 |
| 7 | 40 |
| 8 | 69 |
| 9 | 98 |
| 10 | 168 |
| 11 | 238 |
| 12 | 407 |
| 13 | 576 |
| 14 | 984 |
| 15 | 1392 |
| 16 | 2377 |
| 17 | 3362 |
| 18 | 5740 |
| 19 | 8118 |
| 20 | 13859 |
| 21 | 19600 |
| 22 | 33460 |
| 23 | 47320 |
| 24 | 80781 |
| 25 | 114242 |
| 26 | 195024 |
| 27 | 275806 |
| 28 | 470831 |
| 29 | 665856 |
| 30 | 1136688 |
| 31 | 1607520 |
| 32 | 2744209 |
| 33 | 3880898 |
| 34 | 6625108 |
| 35 | 9369318 |
| 36 | 15994427 |
| 37 | 22619536 |
| 38 | 38613964 |
| 39 | 54608392 |