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 | 176 |
| 2 | 584 |
| 3 | 2068 |
| 4 | 9232 |
| 5 | 38952 |
| 6 | 135296 |
| 7 | 567096 |
| 8 | 2444568 |
| 9 | 10136288 |
| 10 | 34920688 |
| 11 | 144732808 |
| 12 | 625792608 |
| 13 | 2598216176 |
| 14 | 8989149792 |
| 15 | 37119010736 |
| 16 | 160422522664 |
| 17 | 665656629200 |
| 18 | 2297815400576 |
| 19 | 9505629937992 |
| 20 | 41066855413976 |
| 21 | 169932530966160 |
| 22 | 589165636912400 |
| 23 | 2439104800321640 |
| 24 | 10514745879265952 |
| 25 | 43543845360254320 |
| 26 | 149771860125187648 |