id:A083894 - OEIS Search Results

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

+0
12

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; listen)

	OFFSET	`1,70`
	COMMENT	`a(n) = A000005(n) - A083888(n) - A083889(n) - A083890(n) - A083891(n) - A083892(n) - A083893(n) - A083895(n) - A083896(n) = A083902(n) - A083901(n).`
	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: A143654 A161096 A165983 this_sequence A128257 A106035 A105141` `Adjacent sequences: A083891 A083892 A083893 this_sequence A083895 A083896 A083897`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 08 2003`

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

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