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Search: id:A165317
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| A165317 |
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a(n) = the number of digits in the binary representation of n that each do not precede or follow a similarly valued digit. |
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+0
2
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| 1, 2, 0, 1, 3, 1, 0, 1, 2, 4, 2, 0, 2, 1, 0, 1
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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A165316(n) + A165317(n) = the number of digits in the binary representation of n.
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EXAMPLE
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184 in binary is 10111001. There are exactly three binary digits (the first and last 1's, and the leftmost 0) that are each not adjacent to to a similar digit. So, a(184) = 3.
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CROSSREFS
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A165316
Sequence in context: A060318 A089994 A100260 this_sequence A124943 A099557 A079217
Adjacent sequences: A165314 A165315 A165316 this_sequence A165318 A165319 A165320
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KEYWORD
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base,more,nonn
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AUTHOR
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Leroy Quet (q1qq2qqq3qqqq(AT)yahoo.com), Sep 14 2009
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