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A068240
1/2 the number of colorings of a 4 X 4 square array with n colors.
+0
1
1, 3906, 3000366, 414425080, 19064362455, 428429377026, 5861180425996, 55823546748096, 403783634784285, 2353615149832210, 11531349080992026, 48981767072238936, 184656623163700051, 629125059062885490
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.
AT&T Labs Research
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