id:A083890 - OEIS Search Results

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Number of divisors of n with largest digit = 3 (base 10).

+0
12

0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 2, 1, 1, 2, 0, 0, 1, 0, 0, 2, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 0, 2, 0, 1, 1, 1, 1, 2, 0, 0, 2, 0, 0, 1, 0, 0, 1, 0, 0, 2, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 2, 1, 1, 2, 0, 0, 2, 0, 0, 2, 0, 0, 1, 1, 1, 1 (list; graph; listen)

	OFFSET	`1,30`
	COMMENT	`a(n) = A000005(n) - A083888(n) - A083889(n) - A083891(n) - A083892(n) - A083893(n) - A083894(n) - A083895(n) - A083896(n) = A083898(n) - A083897(n).`
	EXAMPLE	`n=132, 3 of the 12 divisors of 132 have largest digit =3:` `{3,33,132}, therefore a(132)=3.`
	CROSSREFS	`Cf. A054055, A000005, A083898.` `Sequence in context: A105816 A062979 A114781 this_sequence A000989 A132401 A104273` `Adjacent sequences: A083887 A083888 A083889 this_sequence A083891 A083892 A083893`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 08 2003`

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Last modified December 9 18:50 EST 2009. Contains 170568 sequences.

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