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A078387
Moebius's mu of numbers which can be written as sum of a positive square and a positive cube.
1
-1, -1, 0, 1, 0, -1, 0, 1, 0, -1, 1, 0, -1, -1, 0, 0, 0, 1, 0, 1, 0, 0, -1, 0, 0, 1, -1, 1, 0, -1, 0, -1, 1, 0, -1, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, -1, 0, -1, 1, 1, 0, 0, -1, 0, 1, 0, 1, 0, -1, 0, 1, 0, -1, -1, -1, 0, -1, 0, 0, 1, -1, 0, -1, 0, -1, 0, 0, 0, 0, 1, 0, 0, -1, 0, -1, 0, 0, 0, -1, -1, 0, 1, 0, 0, -1, 1, -1
OFFSET
1,1
COMMENTS
a(n) = A008683(A055394(n)).
CROSSREFS
Cf. A078386.
Sequence in context: A135528 A163805 A267015 * A189292 A331168 A331281
KEYWORD
sign
AUTHOR
Reinhard Zumkeller, Nov 25 2002
STATUS
approved