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 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 11 |
| 5 | 21 |
| 6 | 43 |
| 7 | 69 |
| 8 | 211 |
| 9 | 389 |
| 10 | 779 |
| 11 | 1276 |
| 12 | 2753 |
| 13 | 3405 |
| 14 | 4167 |
| 15 | 5029 |
| 16 | 12317 |
| 17 | 21691 |
| 18 | 42083 |
| 19 | 68050 |
| 20 | 234257 |
| 21 | 279872 |
| 22 | 331871 |
| 23 | 390781 |
| 24 | 458271 |
| 25 | 533659 |
| 26 | 618679 |
| 27 | 713344 |
| 28 | 831407 |
| 29 | 953343 |
| 30 | 1081455 |
| 31 | 1222053 |
| 32 | 2753231 |
| 33 | 4634203 |
| 34 | 8637959 |
| 35 | 13483492 |
| 36 | 49254279 |
| 37 | 90224223 |
| 38 | 102400127 |