260352domain: NAppears in sequences4th binomial transform of (0,1,0,2,0,4,0,8,0,16,...).at n=8A081180Arises in enumerating Huffman codes, compact trees, and sums of unit fractions.at n=20A194632Number of partitions of n where the difference between consecutive parts is at most 6.at n=55A238866