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A068242 1/2 the number of colorings of a 6x6 square array with n colors. 0
1, 50798448, 190026633752982, 16460573816989545700, 111739638856566209416695, 143179601228065200130305876 (list; graph; refs; listen; history; internal format)
OFFSET

2,2

CROSSREFS

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

Sequence in context: A017459 A017591 A080796 * A038829 A038818 A015392

Adjacent sequences:  A068239 A068240 A068241 * A068243 A068244 A068245

KEYWORD

nonn

AUTHOR

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

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Last modified February 17 16:49 EST 2012. Contains 206058 sequences.