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Search: id:A090330
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A090330 Number of divisors >1 of n that are prefixes of other divisors of n in binary representation. +0
7
0, 0, 0, 1, 0, 1, 0, 2, 0, 2, 0, 3, 0, 1, 1, 3, 0, 3, 0, 3, 1, 2, 0, 5, 0, 1, 1, 3, 0, 4, 0, 4, 0, 2, 0, 6, 0, 2, 1, 5, 0, 4, 0, 3, 2, 2, 0, 7, 0, 3, 1, 3, 0, 5, 1, 5, 1, 1, 0, 7, 0, 1, 2, 5, 0, 4, 0, 4, 0, 4, 0, 8, 0, 2, 1, 4, 0, 5, 0, 7, 1, 2, 0, 7, 1, 2, 1, 5, 0, 6, 0, 3, 1, 2, 1, 9, 0, 2, 1, 5, 0, 5 (list; graph; listen)
OFFSET

1,8

COMMENT

a(n) = A090329(n) - 1.

CROSSREFS

Cf. A090332, A090334, A090331.

Sequence in context: A063918 A097974 A139036 this_sequence A132747 A053399 A117773

Adjacent sequences: A090327 A090328 A090329 this_sequence A090331 A090332 A090333

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 26 2003

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.


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