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 | 0 |
| 2 | 361 |
| 3 | 5918 |
| 4 | 55624 |
| 5 | 1105676 |
| 6 | 19457754 |
| 7 | 322544617 |
| 8 | 5622650429 |
| 9 | 96079232228 |
| 10 | 1646124445916 |
| 11 | 28299650557400 |
| 12 | 485285360460841 |
| 13 | 8326738600567856 |
| 14 | 142906680823826208 |
| 15 | 2452047535254667099 |
| 16 | 42076285291701652140 |