id:A123329 - OEIS Search Results

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Let M be the matrix defined in A111490. Sequence gives M(2,1)-M(1,2), M(2,1)+M(3,1)+M(3,2)-M(1,2)-M(1,3)-M(2,3), etc.

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0, 1, 3, 8, 14, 26, 39, 59, 83, 115, 148, 197, 247, 307 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`a(n) = Sum_{i=1..(n-1)} M(i+1,i)-M(i,i+1)`
	CROSSREFS	`Sequence in context: A126430 A082474 A055335 this_sequence A129067 A005735 A135872` `Adjacent sequences: A123326 A123327 A123328 this_sequence A123330 A123331 A123332`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paolo P. Lava & Giorgio Balzarotti (ppl(AT)spl.at), Oct 06 2006`

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.