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A083919 Number of divisors of n that are congruent to 9 modulo 10. 10
0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0 (list; graph; refs; listen; history; internal format)
OFFSET

1,99

COMMENTS

a(n) = A000005(n) - A083910(n) - A083911(n) - A083912(n) - A083913(n) - A083914(n) - A083915(n) - A083916(n) - A083917(n) - A083918(n).

CROSSREFS

Cf. A010879, A000005, A001227.

Sequence in context: A102448 A102683 A122840 * A063665 A072507 A130779

Adjacent sequences:  A083916 A083917 A083918 * A083920 A083921 A083922

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 08 2003

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Last modified February 15 10:06 EST 2012. Contains 205763 sequences.