A289747 Erroneous version of A036981.
1, 6, 720, 120960, 2264371200, 48920701648896000, 1570969121006520000000000000
Offset: 1
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.
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