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A159228 1/12 the number of nXn arrays of squares of integers with every 2X2 subblock summing to 29 +0
1
3, 12, 33, 95, 237, 665, 1669, 4765, 12213, 35557, 92693, 273525, 720597, 2143125, 5679189, 16962005, 45087573, 134958677 (list; graph; listen)
OFFSET

2,1
CROSSREFS

Sequence in context: A037236 A054602 A083725 this_sequence A054610 A117655 A081423

Adjacent sequences: A159225 A159226 A159227 this_sequence A159229 A159230 A159231

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Apr 06 2009

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

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