|
| |
|
|
A007423
|
|
mu(n) + 1, where mu is the Moebius function.
(Formerly M0011)
|
|
6
| |
|
|
2, 0, 0, 1, 0, 2, 0, 1, 1, 2, 0, 1, 0, 2, 2, 1, 0, 1, 0, 1, 2, 2, 0, 1, 1, 2, 1, 1, 0, 0, 0, 1, 2, 2, 2, 1, 0, 2, 2, 1, 0, 0, 0, 1, 1, 2, 0, 1, 1, 1, 2, 1, 0, 1, 2, 1, 2, 2, 0, 1, 0, 2, 1, 1, 2, 0, 0, 1, 2, 0, 0, 1, 0, 2, 1, 1, 2, 0, 0, 1, 1, 2, 0, 1, 2, 2, 2, 1, 0, 1, 2, 1, 2, 2, 2, 1, 0, 1, 1, 1
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
REFERENCES
| G. H. Hardy and E. M. Wright, An Introduction to the Theory of Numbers. 3rd ed., Oxford Univ. Press, 1954, p. 234.
K. Ireland and M. Rosen, A Classical Introduction to Modern Number Theory. Springer-Verlag, NY, 1982, p. 19.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
|
|
|
MATHEMATICA
| MoebiusMu[Range[100]]+1 (* From Harvey P. Dale, Nov 08 2011 *)
|
|
|
CROSSREFS
| Cf. A008683.
a(n) = abs(A007423(n))
Sequence in context: A123759 A072453 * A076544 A084143 A025888 A138532
Adjacent sequences: A007420 A007421 A007422 * A007424 A007425 A007426
|
|
|
KEYWORD
| easy,nonn,nice
|
|
|
AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
|
| |
|
|
