A351994 Number of spanning trees in a hexagon of size n in the triangular grid.
1, 320, 2300606464, 289899537900576358400, 614482906548854364363387716704247808, 21564742087547836976004856537464240189331001616154755072, 12433415382338420812828401445037903120443542018197863908895102595928462876835840
Offset: 0
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