id:A032925 - OEIS Search Results

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n-th number whose set of base 4 digits is {1,2}.

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3

1, 2, 5, 6, 9, 10, 21, 22, 25, 26, 37, 38, 41, 42, 85, 86, 89, 90, 101, 102, 105, 106, 149, 150, 153, 154, 165, 166, 169, 170, 341, 342, 345, 346, 357, 358, 361, 362, 405, 406, 409, 410, 421, 422, 425, 426, 597, 598, 601, 602, 613 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(2n) = 4a(n) + 1, a(2n+1) = 4a(n) + 2. - Ralf Stephan (ralf(AT)ark.in-berlin.de), Oct 07 2003`
	CROSSREFS	`Sequence in context: A065890 A078632 A122701 this_sequence A075724 A049408 A138970` `Adjacent sequences: A032922 A032923 A032924 this_sequence A032926 A032927 A032928`
	KEYWORD	`nonn,base`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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