OFFSET
1,2
FORMULA
a(n)= Sum_{k=1..n} lambda(k)*lambda(n+1-k).
MAPLE
with(numtheory): T:=array(1..200):for p from 1 to 200 do: T[p] :=(-1)^bigomega(p): od :for n from 1 to 100 do: printf(`%d, `, sum (T[k]*T[n+1-k], k=1..n)):od:
CROSSREFS
KEYWORD
sign
AUTHOR
Michel Lagneau, Aug 10 2010
EXTENSIONS
Definition slightly rephrased, keyword:sign added - R. J. Mathar, Aug 19 2010
STATUS
approved