1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
N: { "a" 1 "b" 1 "c" 1 "d" 1 } N 1 "x" 3 total: 4 bits (0, 1 for picking from N, 2, 3 for picking main entry) 0 "a" 1 "b" 2 "c" 3 "d" 4 "x" 5 "x" 6 "x" 7 "x" 8 "x" 9 "x" a "x" b "x" c "x" d "x" e "x" f "x" (a,b,c, -> 1/16 "x" -> 9/16)