A117005 a(n) = A117000(n) - A117001(n).

1, 2, 2, 2, 2, 2, 2, 2, -1, 2, 2, -4, 2, 2, -4, 2, 2, -4, 2, 2, -4, 2, 2, -4, -3, 2, -4, 2, 2, -14, 2, 2, -4, 2, -8, -4, 2, 2, -4, -8, 2, -4, 2, 2, -14, 2, 2, -4, 9, -8, -4, 2, 2, -4, -8, 16, -4, 2, 2, -14, 2, 2, 10, 2, -8, -4, 2, 2, -4, 6, 2, -4, 2, 2, -14, 2, 16, -4, 2, -8, 5, 2, 2, 10, -8, 2, -4, 2, 2, 4, 16, 2, -4, 2, -8, -4, 2, 16, 14, -8

Offset

1,2

References

H. J. S. Smith, Report on the Theory of Numbers, reprinted in Vol. 1 of his Collected Math. Papers, Chelsea, NY, 1979, see p. 322.

Links

Table of n, a(n) for n=1..100.

Crossrefs

Cf. A117000, A117001.

Sequence in context: A347622 A297034 A190311 * A263204 A194322 A052010

Adjacent sequences: A117002 A117003 A117004 * A117006 A117007 A117008

Keyword

sign

Author

N. J. A. Sloane, Apr 15 2006

Status

approved