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 | 18 |
| 2 | 340 |
| 3 | 2022 |
| 4 | 7400 |
| 5 | 20602 |
| 6 | 48060 |
| 7 | 99022 |
| 8 | 186064 |
| 9 | 325602 |
| 10 | 538404 |
| 11 | 850102 |
| 12 | 1291704 |
| 13 | 1900106 |
| 14 | 2718604 |
| 15 | 3797406 |
| 16 | 5194144 |
| 17 | 6974386 |
| 18 | 9212148 |
| 19 | 11990406 |
| 20 | 15401608 |
| 21 | 19548186 |
| 22 | 24543068 |
| 23 | 30510190 |
| 24 | 37585008 |
| 25 | 45915010 |
| 26 | 55660228 |
| 27 | 66993750 |
| 28 | 80102232 |
| 29 | 95186410 |
| 30 | 112461612 |