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A068251
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1/24 the number of colorings of a 4 X 4 octagonal array with n colors.
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0
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7, 38960, 11043135, 715016960, 19498281250, 301435761312, 3120392830170, 23965758136320, 146127409139745, 741378459250000, 3237913809747617, 12485709312410880, 43342515673364180
(list; graph; refs; listen; history; internal format)
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