A151342 Duplicate of A001246.
1, 1, 4, 25, 196, 1764, 17424, 184041, 2044900, 23639044
Offset: 0
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.