A362143 Maximum number of ways in which a set of integer-sided squares can tile an n X n square.
1, 1, 1, 4, 16, 140, 1987, 62266, 3899340, 508317004, 108388350636, 44608244030240, 39116330784279236
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.