OFFSET
1,2
COMMENTS
a(1)=1 and, for n>1, a(n) is the smallest integer greater than a(n-1) such that a(n)+a(i) is not of the form k*2^k-1 for i=1,..., n-1 and for any integer k>0.
FORMULA
It appears that a(n)=a(n-1)+A119350(n).
CROSSREFS
KEYWORD
nonn
AUTHOR
John W. Layman, May 15 2006
STATUS
approved