id:A132648 - OEIS Search Results

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A 7 X 7 magic square made from the first 49 triangular numbers, read by rows.

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0, 378, 1176, 210, 595, 6, 435, 3, 351, 45, 465, 703, 1128, 105, 946, 171, 561, 820, 190, 21, 91, 741, 528, 36, 325, 120, 15, 1035, 1081, 300, 55, 496, 780, 10, 78, 28, 666, 66, 231, 276, 630, 903, 1, 406, 861, 253, 136, 990, 153 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`The magic sum is 2800. Magic square with consecutive triangular numbers from 0 to 1176.`
	LINKS	`Christian Boyer, Magic square of the first triangular numbers.`
	EXAMPLE	`Here is the magic square:` `0 378 1176 210 595 6 435` `3 351 45 465 703 1128 105` `946 171 561 820 190 21 91` `741 528 36 325 120 15 1035` `1081 300 55 496 780 10 78` `28 666 66 231 276 630 903` `1 406 861 253 136 990 153`
	CROSSREFS	`Sequence in context: A116339 A098840 A065702 this_sequence A071624 A058041 A047632` `Adjacent sequences: A132645 A132646 A132647 this_sequence A132649 A132650 A132651`
	KEYWORD	`fini,full,nonn,tabf`
	AUTHOR	`Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Nov 15 2007`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

AT&T Labs Research