102285

Appears in sequences

• Number of (w,x,y,z) with all terms in {0,...,n} and |w-x|=max{w,x,y,z}-min{w,x,y,z}.at n=26A212755
• Number of rational numbers which can be constructed from the set of integers between 1 and n, through a combination of multiplication and division.at n=16A307105
• a(n) is the sum of the nonpowers of 2 in the 3x+1 sequence that starts at n.at n=54A347532