A156510 - OEIS

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A156510

Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 49.

1, 2, 10, 198, 10918, 2335392, 1569913286, 14728525914260, 599617717929388908 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	LINKS	`Table of n, a(n) for n=1..9.`
	CROSSREFS	`Sequence in context: A194971 A155200 A264563 * A246532 A159558 A297066` `Adjacent sequences: A156507 A156508 A156509 * A156511 A156512 A156513`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Feb 09 2009`
	STATUS	`approved`

Last modified April 17 14:32 EDT 2021. Contains 343063 sequences. (Running on oeis4.)