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 | 3 |
| 2 | 2 |
| 3 | 6 |
| 4 | 5 |
| 5 | 14 |
| 6 | 11 |
| 7 | 31 |
| 8 | 25 |
| 9 | 70 |
| 10 | 56 |
| 11 | 157 |
| 12 | 126 |
| 13 | 353 |
| 14 | 283 |
| 15 | 793 |
| 16 | 636 |
| 17 | 1782 |
| 18 | 1429 |
| 19 | 4004 |
| 20 | 3211 |
| 21 | 8997 |
| 22 | 7215 |
| 23 | 20216 |
| 24 | 16212 |
| 25 | 45425 |
| 26 | 36428 |
| 27 | 102069 |
| 28 | 81853 |
| 29 | 229347 |
| 30 | 183922 |
| 31 | 515338 |
| 32 | 413269 |
| 33 | 1157954 |
| 34 | 928607 |
| 35 | 2601899 |
| 36 | 2086561 |
| 37 | 5846414 |
| 38 | 4688460 |
| 39 | 13136773 |
| 40 | 10534874 |