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) |
|---|---|
| 5 | 1 |
| 6 | 3 |
| 7 | 8 |
| 8 | 21 |
| 9 | 55 |
| 10 | 143 |
| 11 | 364 |
| 12 | 894 |
| 13 | 2098 |
| 14 | 4685 |
| 15 | 9955 |
| 16 | 20175 |
| 17 | 39130 |
| 18 | 72905 |
| 19 | 130965 |
| 20 | 227612 |
| 21 | 383911 |
| 22 | 630191 |
| 23 | 1009242 |
| 24 | 1580345 |
| 25 | 2424289 |
| 26 | 3649547 |
| 27 | 5399802 |
| 28 | 7863034 |
| 29 | 11282400 |
| 30 | 15969161 |
| 31 | 22317933 |
| 32 | 30824563 |
| 33 | 42106956 |
| 34 | 56929205 |