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A156492 Number of nXn arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 32. 0
1, 2, 10, 30, 6308, 74688, 40816519, 721196432, 813786222831 (list; graph; refs; listen; history; internal format)
OFFSET

2,2

CROSSREFS

Sequence in context: A064932 A192381 A162249 * A090809 A051747 A193008

Adjacent sequences:  A156489 A156490 A156491 * A156493 A156494 A156495

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Feb 09 2009

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Last modified February 17 19:13 EST 2012. Contains 206085 sequences.