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A159205 Number of n X n arrays of squares of integers with every 4X4 subblock summing to 5 0
4608, 59616, 489344, 2662560, 10386432, 66526920, 334437152, 1347497352, 4505950080, 23790031416 (list; graph; refs; listen; history; text; internal format)
OFFSET

4,1

LINKS

Table of n, a(n) for n=4..13.

CROSSREFS

Sequence in context: A020437 A157364 A078094 * A170795 A035785 A035900

Adjacent sequences:  A159202 A159203 A159204 * A159206 A159207 A159208

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 06 2009

STATUS

approved

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Last modified July 18 21:25 EDT 2019. Contains 325144 sequences. (Running on oeis4.)