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Search: id:A162172
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| A162172 |
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Abs(numerator+denumerator of nth Bernoulli number). |
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+0
1
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| 2, 7, 29, 43, 29, 71, 2049, 13, 3117, 44665, 174281, 854651, 236361361, 8553109, 2374494610159, 8615841290327, 7709321040707, 2577687858373, 26315271553051558183, 2929993913841565, 261082718496449108521
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OFFSET
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1,1
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FORMULA
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a(n)=abs(A000367(n)+A002445(n)).
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EXAMPLE
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2(=1+1), 7(=1+6), 29(=(-1)+30), 43(=1+42), 29(=(-1)+30), 71(=5+66), 2049(=(-691)+2730), 13(=6+7), 3117(=abs(-3617+510)), etc.
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CROSSREFS
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Cf. A000367, A002445.
Sequence in context: A059803 A076043 A116968 this_sequence A083016 A062064 A158024
Adjacent sequences: A162169 A162170 A162171 this_sequence A162173 A162174 A162175
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KEYWORD
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nonn
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AUTHOR
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Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jun 27 2009
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