A083894 - OEIS

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A083894

Number of divisors of n with largest digit = 7 (base 10).

0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 2, 1, 1, 1, 2, 1, 1, 2, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,70`
	COMMENTS	`a(n) = A000005(n) - A083888(n) - A083889(n) - A083890(n) - A083891(n) - A083892(n) - A083893(n) - A083895(n) - A083896(n) = A083902(n) - A083901(n).`
	LINKS	`Table of n, a(n) for n=1..105.`
	EXAMPLE	`n=119, 2 of the 4 divisors of 119 have largest digit =7: {7,17}, therefore a(119)=2.`
	CROSSREFS	`Cf. A054055, A000005, A083902.` `Sequence in context: A214247 A211987 A165983 * A128257 A198254 A106035` `Adjacent sequences: A083891 A083892 A083893 * A083895 A083896 A083897`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller, May 08 2003`
	STATUS	`approved`

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Last modified May 22 09:01 EDT 2013. Contains 225516 sequences.