id:A078257 - OEIS Search Results

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a(n) = denominator(N) where N = 0.123...n (concatenation of 1 to n after decimal point).

+0
2

10, 25, 1000, 5000, 20000, 15625, 10000000, 50000000, 1000000000, 10000000000, 10000000000000, 125000000000000, 100000000000000000, 5000000000000000000, 200000000000000000000, 25000000000000000000000, 10000000000000000000000000 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(1) = 10 as 100.1 = 1, a(2) = 25 as 250.12 = 3.`
	CROSSREFS	`Cf. A078258.` `Sequence in context: A071289 A156183 A124870 this_sequence A059198 A046961 A125035` `Adjacent sequences: A078254 A078255 A078256 this_sequence A078258 A078259 A078260`
	KEYWORD	`base,nonn,frac`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 24 2002`
	EXTENSIONS	`More terms from Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Jan 04 2003`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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