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) |
|---|---|
| 7 | 10 |
| 8 | 216 |
| 9 | 2765 |
| 10 | 27214 |
| 11 | 227847 |
| 12 | 1708700 |
| 13 | 11832896 |
| 14 | 77170252 |
| 15 | 480381209 |
| 16 | 2881934792 |
| 17 | 16782041642 |
| 18 | 95373448420 |
| 19 | 531211249132 |
| 20 | 2909490548577 |
| 21 | 15712454516343 |
| 22 | 83849134367589 |
| 23 | 442957532385072 |
| 24 | 2319975180476948 |
| 25 | 12061609189508662 |
| 26 | 62313958408668146 |
| 27 | 320192732763382270 |