

A334555


Number of Eulerian orientations in the triangular grid graph with n vertices on each side.


0



1, 2, 10, 126, 4058, 335880, 71670920, 39502865556, 56311864852276, 207801222582652912, 1986359616920243022736, 49208826219541189516584984, 3160589584425292542210483325768, 526456712955511606070610013564727680, 227473288747399377932382913309432126945664
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