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Search: id:A141300
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A141300 a(n) = number of distinct (nonempty) substrings in the binary representation of n that each occur exactly once. +0
4
1, 3, 1, 4, 4, 4, 1, 5, 6, 4, 7, 6, 7, 5, 1 (list; graph; listen)
OFFSET

1,2

COMMENT

Substrings may start with a 0.

EXAMPLE

In (decimal 10 =) binary 1010: 01, 101, 010, 1010 each occur exactly once. So a(10) = 4.

CROSSREFS

Cf. A141297, A141298, A141299.

Sequence in context: A129246 A125608 A099813 this_sequence A014388 A117374 A021322

Adjacent sequences: A141297 A141298 A141299 this_sequence A141301 A141302 A141303

KEYWORD

more,nonn

AUTHOR

Leroy Quet (q1qq2qqq3qqqq(AT)yahoo.com), Jun 24 2008

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Last modified December 2 15:58 EST 2008. Contains 150992 sequences.


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