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A159365 Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 6 1
68, 7528, 1342880, 70479520, 1300635716, 13122289480, 89513533984, 463682260368, 1957228050788, 7050450758456, 22378737304048, 64051043401424, 168180699845668, 410514771713816, 941216251381264, 2043898609681792 (list; graph; refs; listen; history; text; internal format)
OFFSET

4,1

LINKS

R. H. Hardin, Table of n, a(n) for n=4..25

CROSSREFS

Sequence in context: A265243 A331867 A267064 * A145623 A307137 A230685

Adjacent sequences:  A159362 A159363 A159364 * A159366 A159367 A159368

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 11 2009

STATUS

approved

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Last modified February 27 03:30 EST 2020. Contains 332299 sequences. (Running on oeis4.)