A156513 - OEIS

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A156513

Number of nXn arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 50.

3, 4, 174, 272, 48562, 360468, 211236822, 5909410784, 14595969900224 (list; graph; refs; listen; history; internal format)

	OFFSET	`2,1`
	CROSSREFS	`Sequence in context: A041595 A041741 A041903 * A082213 A097172 A042081` `Adjacent sequences: A156510 A156511 A156512 * A156514 A156515 A156516`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net) Feb 09 2009`

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Last modified February 16 02:51 EST 2012. Contains 205860 sequences.