Find the rules and fill in the number questions 11, 12, 14, x, 26, 42 11,12,14,X,26,42 Excuse me x is what. Urgent. Cannot do. Sweat

Find the rules and fill in the number questions 11, 12, 14, x, 26, 42 11,12,14,X,26,42 Excuse me x is what. Urgent. Cannot do. Sweat

Find out the general term formula of the sequence of numbers
11,11+1,12+2,14+Y,14+Y+Z,26+16
The solution is: y = 4, z = 8
X=18.