A123329 - OEIS

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A123329

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.

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

	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 * A169929 A129067 A168155` `Adjacent sequences: A123326 A123327 A123328 * A123330 A123331 A123332`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paolo P. Lava & Giorgio Balzarotti (paoloplava(AT)gmail.com), Oct 06 2006`

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Last modified February 14 11:36 EST 2012. Contains 205623 sequences.