A382158 Number of n-node oriented graphs (no loops or cycles of length 2), not necessarily connected, which are squares.
1, 1, 2, 6, 26, 209, 4115, 206205, 24982238
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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