id:A080763 - OEIS Search Results

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Exchange 1's and 2's in the eta-sequence A006337.

+0
2

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

	OFFSET	`1,1`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..10000`
	FORMULA	`Digits := 100: c2 := sqrt(2.): A080763 := n->3-floor((n+1)c2)+floor(nc2);`
	MATHEMATICA	`Flatten[ Table[ Nest[ Flatten[ # /. {1 -> {2, 2, 1}, 2 -> {2, 1}}] &, {2}, n], {n, 5}]] (from Robert G. Wilson v (rgwv(AT)rgwv.com), May 06 2005)`
	CROSSREFS	`Different from A022921.` `Sequence in context: A023582 A023518 A022921 this_sequence A165413 A080573 A006340` `Adjacent sequences: A080760 A080761 A080762 this_sequence A080764 A080765 A080766`
	KEYWORD	`nonn,easy`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Mar 25 2003`

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

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