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A147755
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a(n) = the largest integer that, when represented in binary, occurs at least twice as a substring in the binary representation of n.
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1
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1, 0, 1, 1, 3, 0, 1, 2, 1, 1, 1, 3, 7, 0, 1, 2, 1, 2, 5, 2, 3, 1, 1, 2, 3, 3, 3, 7, 15, 0, 1, 2, 1, 4, 2, 2, 3, 2, 2, 10, 5, 2, 5, 3, 7, 1, 1, 2, 3, 2, 5, 6, 3, 3, 3, 3, 3, 7, 7, 15, 31, 0, 1, 2, 1, 4, 2, 2, 3, 4, 9, 2, 2, 4, 2, 3, 7, 2, 2, 2, 2, 10, 21, 5, 5, 2, 2, 5, 11, 3, 5, 7, 15, 1, 1, 2, 3, 4, 2, 6, 3, 2
(list; graph; refs; listen; history; internal format)
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OFFSET
| 3,5
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COMMENTS
| The substrings (each equal to the binary representation of a(n)) may overlap in the binary representation of n.
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EXAMPLE
| 21 in binary is 10101. 101 (5 in decimal) occurs twice in 10101: (101)01 and 10(101). Since no larger integer (when represented in binary) occurs more than once within 10101, then a(21) = 5.
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CROSSREFS
| A147756
Sequence in context: A097610 A161556 A129555 * A136748 A049765 A194801
Adjacent sequences: A147752 A147753 A147754 * A147756 A147757 A147758
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KEYWORD
| base,nonn
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AUTHOR
| Leroy Quet Nov 11 2008
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EXTENSIONS
| Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Nov 14 2008
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