id:A141620 - OEIS Search Results

Search: id:A141620

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First differences of A120070.

+0
5

5, -3, 10, -3, -5, 17, -3, -5, -7, 26, -3, -5, -7, -9, 37, -3, -5, -7, -9, -11, 50, -3, -5, -7, -9, -11, -13, 65, -3, -5, -7, -9, -11, -13, -15, 82, -3, -5, -7, -9, -11, -13, -15, -17, 101, -3, -5, -7, -9, -11, -13, -15, -17, -19, 122, -3, -5, -7, -9, -11, -13, -15, -17, -19, -21 (list; graph; listen)

	OFFSET	`0,1`
	FORMULA	`a(n)= mix (from 2) n^2+1 (or A002522(n+2)), (ever from -3) successive -A005408 .`
	CROSSREFS	`Sequence in context: A075693 A082454 A108245 this_sequence A049829 A137613 A165670` `Adjacent sequences: A141617 A141618 A141619 this_sequence A141621 A141622 A141623`
	KEYWORD	`sign`
	AUTHOR	`Paul Curtz (bpcrtz(AT)free.fr), Aug 23 2008`

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

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