id:A162547 - OEIS Search Results

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Somos-4 variant: a(n)=(4*a(n-1)*a(n-3)-4*a(n-2)^2)/a(n-4), (n!=4k+1).

+0
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1, 0, -4, -16, -64, 0, 4096, 65536, 1048576, 0, -1073741824, -68719476736, -4398046511104, 0, 72057594037927936, 18446744073709551616, 4722366482869645213696, 0, -1237940039285380274899124224 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`Hankel transform of A101499.` `Hankel transform of A124431. [From Paul Barry (pbarry(AT)wit.ie), Oct 02 2009]`
	CROSSREFS	`Sequence in context: A119376 A022030 A135450 this_sequence A073533 A061283 A001264` `Adjacent sequences: A162544 A162545 A162546 this_sequence A162548 A162549 A162550`
	KEYWORD	`easy,sign`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Jul 05 2009`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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