OFFSET
1,2
FORMULA
Is sum(k=1, n, a(k)) asymptotic to c*n*log(n)*log(log(n)) with c=0.6...?
EXAMPLE
a(a(1)+a(2))=a(2) therefore a(3)=a(2)=2. a(a(1)+a(2)+a(3))=a(3) therefore a(5)=2. So a(4) is undefined but from the rule a(4)=a(3)+1=3.
CROSSREFS
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Feb 20 2004
STATUS
approved