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Search: id:A165161
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| 1, 2, 5, 29, 31, 43, 41, 29, 31, 71, 61, 2039, 3421, 13, -1
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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For first bisection b(n)=1,5,31,41,31,61, see A162173(n+1)=5,31,41,31,61,. Note b(n)+(A000367=1,1,-1,1,-1,5,)=2,6,30,42,30=A006954(n+1)=second bisection of A051717. Note a(2n+3)+a(2n+4)=A051717(2n+4)+A051717(2n+5), 29+31=30+30, . a(n) can be preceded with a(-1)= 0. Then denominators are A051717=1,2,3,6,30,30,.
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FORMULA
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Numerators of binomial transform of 1/2, 1/6, 0, -1/30, =A164555(n+1)/A027642(n+1).
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CROSSREFS
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Sequence in context: A110497 A000472 A049050 this_sequence A098858 A134449 A103579
Adjacent sequences: A165158 A165159 A165160 this_sequence A165162 A165163 A165164
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KEYWORD
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uned,sign
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Sep 06 2009
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