id:A166446 - OEIS Search Results

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Periodic (1,1,1,1,0,0,-1,-1,-1,-1,0,0).

+0
2

1, 1, 1, 1, 0, 0, -1, -1, -1, -1, 0, 0, 1, 1, 1, 1, 0, 0, -1, -1, -1, -1, 0, 0, 1, 1, 1, 1, 0, 0, -1, -1, -1, -1, 0, 0, 1, 1, 1, 1, 0, 0, -1, -1, -1, -1, 0, 0, 1, 1, 1, 1, 0, 0, -1, -1, -1, -1, 0, 0, 1 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`a(n+1) is the Hankel transform of A027826.`
	FORMULA	`G.f.: (1+x)/(1-x^2+x^4).`
	CROSSREFS	`Sequence in context: A130657 A084846 A130093 this_sequence A103368 A055132 A128408` `Adjacent sequences: A166443 A166444 A166445 this_sequence A166447 A166448 A166449`
	KEYWORD	`easy,sign`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Oct 13 2009`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research