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 | 2 |
| 2 | 7 |
| 3 | 32 |
| 4 | 157 |
| 5 | 786 |
| 6 | 3739 |
| 7 | 15574 |
| 8 | 55410 |
| 9 | 170616 |
| 10 | 465037 |
| 11 | 1145954 |
| 12 | 2597729 |
| 13 | 5492076 |
| 14 | 10947133 |
| 15 | 20749996 |
| 16 | 37660122 |
| 17 | 65814022 |
| 18 | 111254955 |
| 19 | 182614908 |
| 20 | 291980013 |
| 21 | 455974718 |
| 22 | 697104503 |
| 23 | 1045401722 |
| 24 | 1540424266 |
| 25 | 2233662188 |
| 26 | 3191413217 |