Representable Numbers with 1 Small Step Chains
2* 2 @(p)+@(q)
legend:
1st column: number of terms in sum (1-bits in binary representation)
2nd column: a star indicates constructable by a star-chain
3rd column: number of parameters for this family
p,q are free variables for non negative integer values
@(.) means 2^(.)
all 2-power exponents are strictly montonic decreasing ordered in the sum representation of each parametric family