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A068243 1/2 the number of colorings of a 7x7 square array with n colors. 0
1, 20934997854, 19278946338342653286, 112656664890078627543093640, 20043672552286729048799884311015 (list; graph; refs; listen; history; internal format)
OFFSET

2,2

CROSSREFS

Cf. A068239-A068305, A000332, A002417, A027441.

Sequence in context: A003810 A003803 A172794 * A034656 A119478 A101816

Adjacent sequences:  A068240 A068241 A068242 * A068244 A068245 A068246

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net), Feb 24 2002

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Last modified February 17 08:44 EST 2012. Contains 205998 sequences.