A083888 - OEIS

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A083888

Number of divisors of n with largest digit = 1 (base 10).

1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 2, 1, 1, 1, 1 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,10`
	COMMENTS	`a(n) = A000005(n) - A083889(n) - A083890(n) - A083891(n) - A083892(n) - A083893(n) - A083894(n) - A083895(n) - A083896(n).`
	EXAMPLE	`n=110, 4 of the divisors of 110 {1,2,5,10,11,22,55,110} have` `largest digit =1: {1,10,11,110}, therefore a(110)=4.`
	CROSSREFS	`Cf. A054055, A000005.` `Sequence in context: A030407 A098357 A165735 * A102681 A172086 A204014` `Adjacent sequences: A083885 A083886 A083887 * A083889 A083890 A083891`
	KEYWORD	`nonn,base`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 08 2003`

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Last modified February 13 08:12 EST 2012. Contains 205451 sequences.