Answer:
The following number is: 16.
Step-by-step explanation:
If we separate the numbers that in order are in the even place of the odd ones, we would have the following: 1.- 1 2 3 4
2.- 1 4 9
If we finish in 1.- they increase by 1 in 1,
while in 2.- they increase in odd numbers, 1 + 3 = 4, 4 + 5 = 9, 9 + 7 = 16
The following number is: 16.