id:A101650 - OEIS Search Results

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A Thue-Morse-Stern sequence.

+0
4

0, 0, 1, 0, 2, 1, 2, 0, 0, 2, 1, 1, 1, 2, 0, 0, 1, 0, 0, 2, 1, 1, 0, 1, 0, 1, 1, 2, 0, 0, 1, 0, 2, 1, 2, 0, 1, 0, 0, 2, 1, 1, 0, 1, 2, 0, 2, 1, 2, 0, 2, 1, 0, 1, 1, 2, 0, 0, 1, 0, 2, 1, 2, 0, 0, 2, 1, 1, 1, 2, 0, 0, 2, 1, 2, 0, 1, 0, 0, 2, 1, 1, 0, 1, 2, 0, 2, 1, 1, 2, 0, 0, 0, 2, 1, 1, 1, 2, 0, 0, 0 (list; graph; listen)

	OFFSET	`0,5`
	COMMENT	`a(2n+1) = a(n).`
	FORMULA	`a(n)=mod(-1+sum{k=0..floor(n/2), mod(binomial(n-k, k), 2)}, 3); a(n)=mod(-1+A002487(n+1), 3).`
	CROSSREFS	`Cf. A010060.` `Sequence in context: A091952 A108803 A050601 this_sequence A053796 A029391 A098356` `Adjacent sequences: A101647 A101648 A101649 this_sequence A101651 A101652 A101653`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paul Barry (pbarry(AT)wit.ie), Dec 10 2004`

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Last modified November 30 22:12 EST 2008. Contains 150989 sequences.

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