On Sun, Feb 22, 2009 at 4:22 PM, T. D. Noe <noe at sspectra.com> wrote: >>t(n) = 3 + 2^t(n-1) > > This cannot be correct because your t(n) has 3 bits set for all n>2. The > original t(n) has n bits set. Maybe you missed that the exponent of 2 is t(n-1) and not just n-1 ? If not, I don't understand your comment. JN