id:A156399 - OEIS Search Results

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Number of 9X9 arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to n.

+0
1

1, 76, 1728, 9712, 34814, 40416, 130456, 149480, 644220, 297215, 1380432, 3924896, 4260776, 4171320, 5913728, 6328576, 17481322, 7436362, 23029656, 61580624, 75335814, 56271108, 62202832, 54904272, 183254724, 62428100, 176105168 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A163710 A061618 A060190 this_sequence A153177 A166191 A017792` `Adjacent sequences: A156396 A156397 A156398 this_sequence A156400 A156401 A156402`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Feb 09 2009`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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