If we add 16 as a node to the graph below, which node(s) will it connect to?
Hint 1
the knowledge tag is indicating knowledge of computer science concepts, not external 'data' related to the graph.
Hint 2
This puzzle is derived from, but very much different from, another puzzle.
Hint 3
Nodes 8, 11, and 12 are not included because they are completely disconnected from each other and the other nodes from 0 through 15. They're still disconnected from the rest of the graph when we include 16.
Hint 4
The relation has something to do with comparing strings.
Hint 5
An edit distance (metric) is involved.