A156478 - OEIS

This site is supported by donations to The OEIS Foundation.

A156478

Number of nXn arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 22.

2, 44, 40, 7838, 31206, 5100574, 62202832, 23258023832, 999916709280, 912189500014368 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`3,1`
	LINKS	`Table of n, a(n) for n=3..12.`
	CROSSREFS	`Sequence in context: A088466 A177490 A203498 * A156508 A007367 A006313` `Adjacent sequences: A156475 A156476 A156477 * A156479 A156480 A156481`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Feb 09 2009`
	STATUS	`approved`

Content is available under The OEIS End-User License Agreement .

Last modified May 25 06:53 EDT 2013. Contains 225646 sequences.