id:A051822 - OEIS Search Results

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Number of numbers below 10^n with nonzero multiplicative digital root 2.

+0
2

1, 16, 224, 2613, 27458, 271155, 2620040, 25457267, 251964768, 2537869322, 25777827199, 261509437991, 2634407279895, 26321038031960, 261379965909359, 2589357329707966 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`William Mayne, sci.math, Jun 15 1991`
	FORMULA	`# { i : 10^(n-1) < i < 10^n and A051802(i)=2 }`
	CROSSREFS	`Cf. A051802, A051804, A051813.` `Sequence in context: A078266 A093746 A118779 this_sequence A017438 A098301 A014897` `Adjacent sequences: A051819 A051820 A051821 this_sequence A051823 A051824 A051825`
	KEYWORD	`nonn,base,hard`
	AUTHOR	`Dan Hoey (Hoey(AT)AIC.NRL.Navy.Mil), Dec 09 1999`

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

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