id:A065744 - OEIS Search Results

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Number of 9's in decimal expansion of 2^n.

+0
10

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 3, 3, 2, 1, 1, 1, 2, 1, 2, 2, 1, 2, 1, 0, 0, 0, 1, 3, 3, 2, 3, 5, 3, 3, 3, 0, 0, 0, 2, 3, 1, 1, 1, 2, 2, 3, 3, 2, 1, 0, 2, 5, 2, 3, 2, 0, 2, 2, 3, 3, 1, 4, 3, 2, 1, 2, 2, 4, 4, 2, 6, 8, 3, 3, 3, 1, 1, 0, 2 (list; graph; listen)

	OFFSET	`0,33`
	COMMENT	`2^12=4096 so a(12)=1`
	MATHEMATICA	`Table[ Count[ IntegerDigits[2^n], 9], {n, 0, 100} ]`
	CROSSREFS	`Cf. 0's A027870, 1's A065712, 2's A065710, 3's A065714, 4's A065715, 5's A065716, 6's A065717, 7's A065718, 8's A065719.` `Sequence in context: A097278 A056223 A100013 this_sequence A016455 A060574 A075522` `Adjacent sequences: A065741 A065742 A065743 this_sequence A065745 A065746 A065747`
	KEYWORD	`nonn,base`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Dec 04 2001`
	EXTENSIONS	`More terms from Robert G. Wilson v (rgwv(AT)rgwv.com), Dec 07 2001`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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