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A156496 Number of nXn arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 34. +0
1
2, 4, 92, 168, 23020, 138156, 34265768, 728427904, 659452297402 (list; graph; listen)
OFFSET

2,1

CROSSREFS

Sequence in context: A116310 A009277 A018410 this_sequence A007534 A009379 A092918

Adjacent sequences: A156493 A156494 A156495 this_sequence A156497 A156498 A156499

KEYWORD

nonn

AUTHOR

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

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.


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