OFFSET
1,2
COMMENTS
Denominator of Sum_{k=1..n} k^mu(n+1-k) is A130492(n).
MAPLE
A130491 := proc(n) numer(add(k^numtheory[mobius](n+1-k), k=1..n)) ; end: seq(A130491(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