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A083889 Number of divisors of n with largest digit = 2 (base 10). 10
0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 2, 0, 1, 0, 1, 0, 1, 0, 2, 1, 2, 0, 2, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 2, 0, 1, 0, 2, 0, 2, 0, 2, 0, 1, 0, 2, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 3, 0, 1, 1, 1, 0, 2, 0, 1, 0, 1, 0, 2, 0, 1, 0, 1, 0, 1, 0, 2, 0, 1, 0, 3, 0, 1, 0, 2, 0, 1, 0, 1, 0, 1, 0, 2, 0, 1, 0, 2, 0, 2, 0, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,12

COMMENTS

a(n) = A000005(n) - A083888(n) - A083890(n) - A083891(n) - A083892(n) - A083893(n) - A083894(n) - A083895(n) - A083896(n) = A083897(n) - A083888(n).

LINKS

Table of n, a(n) for n=1..105.

EXAMPLE

n=120, 4 of the 16 divisors of 120 have largest digit =2:

{2,12,20,120}, therefore a(120)=4.

CROSSREFS

Cf. A054055, A000005, A083897.

Sequence in context: A106404 A292242 A280800 * A127523 A116927 A137276

Adjacent sequences:  A083886 A083887 A083888 * A083890 A083891 A083892

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller, May 08 2003

STATUS

approved

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Last modified October 22 02:46 EDT 2018. Contains 316431 sequences. (Running on oeis4.)