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) |
|---|---|
| 1 | 154 |
| 2 | 266 |
| 3 | 869 |
| 4 | 2282 |
| 5 | 5633 |
| 6 | 14312 |
| 7 | 39494 |
| 8 | 99168 |
| 9 | 261501 |
| 10 | 666722 |
| 11 | 1785513 |
| 12 | 4510376 |
| 13 | 12029879 |
| 14 | 30520850 |
| 15 | 81445076 |
| 16 | 206279050 |
| 17 | 550615794 |
| 18 | 1395355514 |
| 19 | 3723483907 |
| 20 | 9434612056 |
| 21 | 25180483084 |
| 22 | 63803504988 |
| 23 | 170274449783 |
| 24 | 431455039974 |