A382157 Number of n-node digraphs without loops, not necessarily connected, which are squares.
1, 1, 3, 9, 46, 473, 13763, 1121383
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.
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