**Number of distinct subsets S of T={0,1,2,...,n} such that each element of T is the sum of two elements of S.**

*1, 1, 2, 3, 6, 10, 20, 37, 73, 139, 275, 533, 1059, 2075, 4126, 8134, 16194, 32058*

*1 seqfan posts*

Index of A-numbers in seqfan: by ascending order by month by frequency by keyword

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