id:A156448 - OEIS Search Results

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Number of nXn arrays of squares of integers, symmetric about main diagonal, with all rows summing to 9.

+0
1

1, 2, 8, 68, 868, 19436, 638012, 57507580, 22620401127, 17074878770018, 18408433074826454 (list; graph; listen)

	OFFSET	`1,2`
	CROSSREFS	`Sequence in context: A053922 A030445 A093990 this_sequence A157752 A055547 A113087` `Adjacent sequences: A156445 A156446 A156447 this_sequence A156449 A156450 A156451`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Feb 09 2009`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.