id:A067469 - OEIS Search Results

Search: id:A067469

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Numbers n such that 2 is the first digit of 2^n.

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1, 8, 11, 18, 21, 28, 31, 38, 41, 48, 51, 58, 61, 68, 71, 81, 91, 101, 104, 111, 114, 121, 124, 131, 134, 141, 144, 151, 154, 161, 164, 171, 174, 184, 194, 197, 204, 207, 214, 217, 224, 227, 234, 237, 244, 247, 254, 257, 264, 267, 277, 287, 297, 300, 307, 310 (list; graph; listen)

	OFFSET	`1,2`
	PROGRAM	`(PARI) : for(n=1, 420, if(floor(2^n/10^(floor(n*log(2)/log(10))))==2, print1(n, ", ")))`
	CROSSREFS	`Cf. A067480.` `Sequence in context: A111254 A127271 A118549 this_sequence A000852 A000873 A129730` `Adjacent sequences: A067466 A067467 A067468 this_sequence A067470 A067471 A067472`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 22 2002`

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Last modified November 22 20:51 EST 2009. Contains 167312 sequences.

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