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Search: id:A138144
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| A138144 |
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Palindromes formed from the reflected decimal expansion of the concatenation of 1, 1 and infinite 0's. |
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+0
13
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| 1, 11, 111, 1111, 11011, 110011, 1100011, 11000011, 110000011, 1100000011, 11000000011, 110000000011, 1100000000011, 11000000000011, 110000000000011, 1100000000000011, 11000000000000011, 110000000000000011
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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a(n) is also A147595(n) written in base 2. [From Omar E. Pol (info(AT)polprimos.com), Nov 08 2008]
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EXAMPLE
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n .... a(n)
1 .... 1
2 .... 11
3 .... 111
4 .... 1111
5 .... 11011
6 .... 110011
7 .... 1100011
8 .... 11000011
9 .... 110000011
10 ... 1100000011
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CROSSREFS
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Cf. A000533.
CF. A138118, A138119, A138120, A138145, A138146, A138721, A138826, A147595. [From Omar E. Pol (info(AT)polprimos.com), Nov 08 2008]
Sequence in context: A077488 A039988 A083440 this_sequence A090103 A061851 A138145
Adjacent sequences: A138141 A138142 A138143 this_sequence A138145 A138146 A138147
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KEYWORD
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easy,nonn,base
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AUTHOR
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Omar E. Pol (info(AT)polprimos.com), Mar 29 2008
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EXTENSIONS
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Better definition. - Omar E. Pol (info(AT)polprimos.com), Nov 15 2008
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