-6, and then 13.
11
14
11 comes next.
-11 Pattern: Subtract 1, subtract 2, subtract 3 and so on.
4 6 3 6 12 14 11 14
Notice the pattern: 12^2 11^2 10^2 9^2 .. So the next term is 6^2=36
12
the patter is -2 +3 -4 +5 -6 +7 so it goes 8 6 9 5 10 4 11 3 12 2 11 1 10
8 7 10 11 13. 13256 is 5 numbers, in a combination.
12
11
13