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Search: id:A156492
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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
1, 2, 10, 30, 6308, 74688, 40816519, 721196432, 813786222831 (list; graph; listen)
OFFSET

2,2

CROSSREFS

Sequence in context: A140576 A064932 A162249 this_sequence A090809 A051747 A024456

Adjacent sequences: A156489 A156490 A156491 this_sequence A156493 A156494 A156495

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net) Feb 09 2009

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.


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