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1, 2, 3, 5, 4, 9, 7, 6, 17, 13, 10, 11, 33, 8, 25, 19, 18, 21, 65, 14, 15, 49, 12, 37, 35, 34, 41, 129, 26, 27, 29, 20, 97, 23, 22, 73, 69, 66, 67, 81, 16, 257, 51, 50, 53, 57, 38, 39, 193, 36, 45, 43, 42, 145, 137, 130, 131, 133, 28, 161, 31, 30, 513, 101, 98
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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MATHEMATICA
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b[n_] := b[n] = If[n==1, 1, If[EvenQ[n], 3b[n/2]-1, Floor[3b[(n+1)/2]/2]]];
a[n_] := Module[{k = 1}, While[n != b[k], k++]; k];
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PROG
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(Haskell)
import Data.List (elemIndex); import Data.Maybe (fromJust)
a259431 = (+ 1) . fromJust . (`elemIndex` a183209_list)
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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