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Search: id:A113835
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| A113835 |
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Binary JIS for fraction 5/7. |
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+0
1
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| 1, 5, 13, 45, 109, 365, 877, 2925, 7021, 23405, 56173, 187245, 449389, 1497965, 3595117, 11983725, 28760941, 95869805, 230087533, 766958445, 1840700269, 6135667565, 14725602157, 49085340525, 117804817261, 392682724205
(list; graph; listen)
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OFFSET
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0,2
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FORMULA
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JIS[5/7, 2]
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EXAMPLE
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Binary expansion of 5/7 is periodic: 0.(1,0,1),(1,0,1) ),(1,0,1)
position digit 1-> 1 3 4 6 7 9
we create binary JIS as partial sums of infinite sum 2^(n-1) where n is position where digits 1 occured in binary expansion). First term: 2^(1-1)=1 Second term 2^(1-1)+2^(3-1)=5 Third term 2^(1-1)+2^(3-1)+2^(4-1)=13 etc.
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CROSSREFS
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Cf. A099974, A112627, A080355, A080567, A099969, A099970, A099971.
Sequence in context: A129789 A093576 A115785 this_sequence A006349 A052899 A099972
Adjacent sequences: A113832 A113833 A113834 this_sequence A113836 A113837 A113838
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KEYWORD
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nonn,obsc,uned
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AUTHOR
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Artur Jasinski (grafix(AT)csl.pl), Jan 27 2006
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