A075897 - OEIS

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A075897

1 if binary weight of n is 1 or 2, otherwise 0.

0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	LINKS	`Index entries for characteristic functions`
	FORMULA	`For n>0: a(n) = 0^floor(A000120(n)/3). - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 07 2003`
	CROSSREFS	`1 if n is in A048645, 0 otherwise.` `Sequence in context: A097325 A167393 A106549 * A135947 A101040 A175629` `Adjacent sequences: A075894 A075895 A075896 * A075898 A075899 A075900`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Mar 29 2003`

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Last modified February 16 14:37 EST 2012. Contains 205930 sequences.