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) |
|---|---|
| 2 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 7 |
| 6 | 11 |
| 7 | 25 |
| 8 | 43 |
| 9 | 106 |
| 10 | 180 |
| 11 | 453 |
| 12 | 797 |
| 13 | 2023 |
| 14 | 3632 |
| 15 | 9328 |
| 16 | 16960 |
| 17 | 44036 |
| 18 | 80989 |
| 19 | 211815 |
| 20 | 393098 |
| 21 | 1034958 |
| 22 | 1934813 |
| 23 | 5121356 |
| 24 | 9633260 |
| 25 | 25615432 |
| 26 | 48433926 |
| 27 | 129289382 |
| 28 | 245554773 |
| 29 | 657691061 |
| 30 | 1253974468 |
| 31 | 3368475942 |
| 32 | 6444250241 |