OFFSET
1,2
COMMENTS
Created with the hope of obtaining a better understanding of A213975.
FORMULA
It appears that a(n+1) = 2*a(n) + eps, where eps = 0, 1 or -1. The first 130 values of eps show a pattern which is somewhat mysterious.
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jul 09 2012
STATUS
approved