A092417 Duplicate of A071543.
1, 3, -4, 12, 144, 576, -7104, 45248, 450432, 2240512, 5292544, -88076288, -62210048
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.