A083924 - OEIS

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A083924

Characteristic function for A072795.

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

	OFFSET	`0,1`
	COMMENTS	`The sequence obtained by counting the runs of 0- and 1-bits 1,2,1,2,3,5,9,14,28,... is essentially the sequence A000108 interleaved with the sequence A000245, which appears to be A026008.`
	LINKS	`Index entries for characteristic functions`
	FORMULA	`a(0) = 0, a(n>0) = 1 if A072771(n)=0, otherwise 0.`
	CROSSREFS	`a(n) = A083923(A069770(n)). Used to compute A083926.` `Sequence in context: A127000 A103226 A080886 * A171587 A082410 A094217` `Adjacent sequences: A083921 A083922 A083923 * A083925 A083926 A083927`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (MyFirstname.MySurname(AT)iki.fi) May 13 2003`

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.