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Search: id:A166138
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A166138 Second trisection of A022998. +0
2
1, 8, 7, 20, 13, 32, 19, 44, 25, 56, 31, 68, 37, 80, 43, 92, 49, 104, 55, 116, 61, 128 (list; graph; listen)
OFFSET

0,2

COMMENT

First:A165988. A022998^2=0,1,16,9,64,25,144,49,256=b(n);b(n+1) is the first bisection of denominators of Balmer A061038 or A061038(2n).

FORMULA

Mix A016921=6n+1 , A017618=12n+8 .

CROSSREFS

Sequence in context: A019326 A051011 A075573 this_sequence A126937 A090099 A138809

Adjacent sequences: A166135 A166136 A166137 this_sequence A166139 A166140 A166141

KEYWORD

nonn,uned

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Oct 08 2009

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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