A193151 Numbers of spanning trees of the square graphs.

1, 4, 129600, 17210368000000, 14344087024170010017792000, 108802808353712082212104996827371705204736, 10395932534012968042533315321842530487986106853298174278238208

Offset

1,2

Links

Table of n, a(n) for n=1..7.

Eric Weisstein's World of Mathematics, Spanning Tree

Eric Weisstein's World of Mathematics, Square Graph

Crossrefs

Sequence in context: A273231 A360760 A239021 * A034209 A260614 A300286

Adjacent sequences: A193148 A193149 A193150 * A193152 A193153 A193154

Keyword

nonn

Author

Eric W. Weisstein, Jul 16 2011

Status

approved