OFFSET
0,1
COMMENTS
Arises from studying behavior of 1-D CA defined by Rule 30 when started with a single ON cell.
I would very much like to see a recurrence or formula.
Subtracting 2^n gives 2, 1, 0, -1, -1, -6, 0, 4, -3, -14, 9, -21, -7, -51, ...
CROSSREFS
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Aug 14 2014
EXTENSIONS
a(14)-a(23) from Hiroaki Yamanouchi, Sep 12 2014
STATUS
approved