16
This is a 4 step sequence , starting with the number 1. 1) Double the number 2) Add 2 3) Subtract 1 4) Return to step 1) and repeat. 1 x 2 = 2 ; 2 + 2 = 4 ; 4 - 1 = 3 ; ..........7 x 2 = 14 ; 14 + 2 = 16. Then the next number is generated by Step 3).. 16 - 1 = 15
Each number is twice the previous number.
15,30,32,31,62,64,63..... (*2,+2,-1)
c) 17
16
You are multiplying each number in the sequence by -2. Therefore, the next number in the sequence after 32 is -64.
The next number in the sequence is 15 - the sequence goes x2, +2, -1
16
consecutive multiplying by 2.
The next number in the sequence 2, 4, 16, 64 is 256.
This is a 4 step sequence , starting with the number 1. 1) Double the number 2) Add 2 3) Subtract 1 4) Return to step 1) and repeat. 1 x 2 = 2 ; 2 + 2 = 4 ; 4 - 1 = 3 ; ..........7 x 2 = 14 ; 14 + 2 = 16. Then the next number is generated by Step 3).. 16 - 1 = 15
If you mean: 1, 2, 4, 8 and 16 then the next number is 32
x 2 + 2 - 1 is the repeating sequence 1 x 2 = 2 2 + 2 = 4 4 - 1 = 3 3 x 2 = 6 6 + 2 = 8 8 - 1 = 7 7 x 2 = 14 14 + 2 = 16 16 - 1 = 15 the next number is 15
Each number is twice the previous number.
15,30,32,31,62,64,63..... (*2,+2,-1)
c) 17