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A104196
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Sum of CarmichaelLambda[n] between successive powers of 2.
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0
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1, 3, 14, 46, 206, 694, 2610, 9420, 35038, 130784, 484136, 1827996, 6891816, 26121822, 99232238, 379021972, 1450654796, 5564804616, 21406426134, 82457456808
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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FORMULA
| a(n)=Sum[CarmichaelLambda[i], {i, 2^n, 2^(n + 1) - 1}]
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MATHEMATICA
| a= Table[Sum[CarmichaelLambda[i], {i, 2^n, 2^(n + 1) - 1}], {n, 0, 24}]
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CROSSREFS
| Sequence in context: A180785 A123350 A027953 * A202144 A201349 A006900
Adjacent sequences: A104193 A104194 A104195 * A104197 A104198 A104199
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KEYWORD
| nonn
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AUTHOR
| Roger Bagula (rlbagulatftn(AT)yahoo.com), Mar 12 2005
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