id:A051825 - OEIS Search Results

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Number of numbers below 10^n with nonzero multiplicative digital root 5.

+0
2

1, 8, 66, 488, 3360, 23132, 165550, 1262132, 10302943, 88755142, 788594730, 7086051536, 63890207069, 581627969769, 5421588729745, 52259542704256 (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)=5 }`
	CROSSREFS	`Cf. A051802, A051807, A051816.` `Sequence in context: A121781 A121780 A121779 this_sequence A121778 A037501 A037678` `Adjacent sequences: A051822 A051823 A051824 this_sequence A051826 A051827 A051828`
	KEYWORD	`nonn,base,hard`
	AUTHOR	`Dan Hoey (Hoey(AT)AIC.NRL.Navy.Mil), Dec 09 1999`

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

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