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 | 1 |
| 2 | 8 |
| 3 | 37 |
| 4 | 124 |
| 5 | 384 |
| 6 | 1088 |
| 7 | 2888 |
| 8 | 7480 |
| 9 | 18764 |
| 10 | 45852 |
| 11 | 110266 |
| 12 | 260935 |
| 13 | 609153 |
| 14 | 1407089 |
| 15 | 3218496 |
| 16 | 7298207 |
| 17 | 16429096 |
| 18 | 36739434 |
| 19 | 81668800 |
| 20 | 180586647 |
| 21 | 397394871 |
| 22 | 870673675 |
| 23 | 1900033959 |
| 24 | 4131237894 |
| 25 | 8952390226 |
| 26 | 19339847678 |
| 27 | 41660216922 |
| 28 | 89502201047 |
| 29 | 191809609673 |