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 | 10 |
| 3 | 17 |
| 4 | 79 |
| 5 | 134 |
| 6 | 622 |
| 7 | 1055 |
| 8 | 4897 |
| 9 | 8306 |
| 10 | 38554 |
| 11 | 65393 |
| 12 | 303535 |
| 13 | 514838 |
| 14 | 2389726 |
| 15 | 4053311 |
| 16 | 18814273 |
| 17 | 31911650 |
| 18 | 148124458 |
| 19 | 251239889 |
| 20 | 1166181391 |
| 21 | 1978007462 |
| 22 | 9181326670 |
| 23 | 15572819807 |
| 24 | 72284431969 |
| 25 | 122604550994 |
| 26 | 569094129082 |