**1/3 of the number of colorings of an n X n square array with 3 colors.**

*1, 6, 82, 2604, 193662, 33865632, 13956665236, 13574876544396*

*4 seqfan posts*

*Sun Nov 2 14:46:58 CET 2008* [seqfan] Re: n x n matrices with adjacent entries differing by +/- 1

*Sun Nov 2 04:22:27 CET 2008* [seqfan] Re: n x n matrices with adjacent entries differing by +/- 1

*Sun Nov 2 04:14:18 CET 2008* [seqfan] Re: n x n matrices with adjacent entries differing by +/- 1

*Sun Nov 2 02:54:37 CET 2008* [seqfan] Re: n x n matrices with adjacent entries differing by +/- 1

Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword

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