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Search: id:A074746
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| A074746 |
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Number of distinct differences between consecutive anti-divisors of n (ordered by size). |
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+0
1
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| 0, 0, 0, 0, 1, 0, 2, 1, 1, 2, 2, 1, 3, 2, 1, 1, 3, 3, 2, 1, 2, 3, 4, 1, 4, 2
(list; graph; listen)
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OFFSET
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1,7
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COMMENT
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See A066272 for definition of anti-divisor.
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EXAMPLE
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For n=17, anti-divisors={2,3,5,7,11}; differences={1,2,2,4}; a(17) = number of distinct differences = 3.
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CROSSREFS
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Cf. A066272.
Sequence in context: A111949 A143323 A086598 this_sequence A133188 A008612 A029320
Adjacent sequences: A074743 A074744 A074745 this_sequence A074747 A074748 A074749
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KEYWORD
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easy,more,nonn
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AUTHOR
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Jason Earls (zevi_35711(AT)yahoo.com), Sep 06 2002
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