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A083917 Number of divisors of n that are congruent to 7 modulo 10. 10
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, 1, 0, 0, 0, 1, 0, 0, 2, 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1 (list; graph; refs; listen; history; internal format)
OFFSET

1,77

COMMENTS

a(n) = A000005(n) - A083910(n) - A083911(n) - A083912(n) - A083913(n) - A083914(n) - A083915(n) - A083916(n) - A083918(n) - A083919(n).

CROSSREFS

Cf. A010879, A000005, A001227.

Sequence in context: A086076 A085981 A127324 * A117974 A193426 A156062

Adjacent sequences:  A083914 A083915 A083916 * A083918 A083919 A083920

KEYWORD

nonn

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.