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A053734 A000016-A000048 (when they are lined up so that the two 16's match). +0
1
0, 0, 1, 0, 1, 1, 1, 0, 2, 1, 1, 2, 1, 1, 5, 0, 1, 6, 1, 2, 11, 1, 1, 16, 4, 1, 30, 2, 1, 57, 1, 0, 95, 1, 13, 172, 1, 1, 317, 16, 1, 591, 1, 2, 1124, 1, 1, 2048, 10, 52, 3857, 2, 1, 7286, 97, 16, 13799, 1, 1, 26386, 1, 1, 49968, 0, 319, 95331, 1, 2, 182363 (list; graph; listen)
OFFSET

1,9

MAPLE

f := proc(n) local d, sum1; sum1 := 0; for d from 1 to n do if d mod 2 = 1 and n mod d = 0 then sum1 := sum1+(phi(d)-mobius(d))*2^(n/d); fi; od; sum1/(2*n); end;

CROSSREFS

Sequence in context: A035693 A068696 A133009 this_sequence A057856 A117939 A105522

Adjacent sequences: A053731 A053732 A053733 this_sequence A053735 A053736 A053737

KEYWORD

nonn

AUTHOR

njas, Mar 25 2000

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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