id:A051816 - OEIS Search Results

Search: id:A051816

Displaying 1-1 of 1 results found.

page 1

Number of n-digit numbers with nonzero multiplicative digital root 5.

+0
2

1, 7, 58, 422, 2872, 19772, 142418, 1096582, 9040811, 78452199, 699839588, 6297456806, 56804155533, 517737762700, 4839960759976, 46837953974511 (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, A051825.` `Sequence in context: A062192 A122649 A051846 this_sequence A015566 A006193 A139397` `Adjacent sequences: A051813 A051814 A051815 this_sequence A051817 A051818 A051819`
	KEYWORD	`nonn,base,hard`
	AUTHOR	`Dan Hoey (Hoey(AT)AIC.NRL.Navy.Mil), Dec 09 1999`

page 1

Search completed in 0.002 seconds

Last modified September 5 01:44 EDT 2008. Contains 143476 sequences.

AT&T Labs Research