id:A104575 - OEIS Search Results

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Alternating sum of diagonals in A060177.

+0
4

-1, -2, -1, -1, 3, 1, 7, 4, 4, 4, 2, -9, -7, -7, -28, -17, -25, -15, -24, -11, -8, 34, 19, 53, 46, 108, 110, 106, 113, 122, 108, 75, 103, -16, -87, -107, -169, -329, -257, -574, -501, -676, -609, -749, -588, -808, -548, -521, -315, -240, 369, 485, 865, 1099, 1738, 2129, 2686, 3088, 3460, 4103, 4011, 4480, 3983 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`A090794(n) = (A000041(n)-a(n))/2. A092306(n) = (A000041(n)+a(n))/2.`
	FORMULA	`G.f.: Product((1-2*x^i)/(1-x^i), i=1..infinity). Euler transform of -A008965(n).`
	CROSSREFS	`Sequence in context: A089141 A081477 A003687 this_sequence A046223 A073463 A127948` `Adjacent sequences: A104572 A104573 A104574 this_sequence A104576 A104577 A104578`
	KEYWORD	`sign`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)Eunet.yu), Apr 21 2005`

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.

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