OFFSET
1,3
COMMENTS
Numerator of Sum_{k=1..n} k^mu(n+1-k) is A130491(n).
MAPLE
A130492 := proc(n) denom(add(k^numtheory[mobius](n+1-k), k=1..n)) ; end: seq(A130492(n), n=1..40) ; # R. J. Mathar, Oct 16 2007
CROSSREFS
KEYWORD
frac,nonn
AUTHOR
Leroy Quet, May 29 2007
EXTENSIONS
More terms from R. J. Mathar, Oct 16 2007
STATUS
approved