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) |
|---|---|
| 6 | 1 |
| 7 | 1 |
| 8 | 5 |
| 9 | 12 |
| 10 | 40 |
| 11 | 106 |
| 12 | 317 |
| 13 | 868 |
| 14 | 2462 |
| 15 | 6778 |
| 16 | 18801 |
| 17 | 51561 |
| 18 | 141583 |
| 19 | 386865 |
| 20 | 1056815 |
| 21 | 2880894 |
| 22 | 7850318 |
| 23 | 21373466 |
| 24 | 58182244 |
| 25 | 158342918 |
| 26 | 430954506 |
| 27 | 1173001715 |
| 28 | 3193466631 |
| 29 | 8696388412 |
| 30 | 23689689323 |
| 31 | 64555962710 |
| 32 | 175989086913 |
| 33 | 479971320862 |
| 34 | 1309581740793 |
| 35 | 3574715516111 |