15
15,30,32,31,62,64,63..... (*2,+2,-1)
a,b,c,d = 1,2,4,3 b=2a c=b+2 d=c-1 7*2=14 14+2=16 16-1=15
15 Because...+2 -1 x2 +2 -1 x2 +2 (-1)
The simplest sequence appears to be 15 1*2=2 2+2=4 4-1=3 3*2=6 6+2=8 8-1=7 7*2=14 14+2=16 16-1=15 Multiply by 2 Add 2 Subtract 1 Repeat
There are some solutions where the sequence goes ... 14, 15, 13, ... but since yours goes ...,14, 1, 5, 13, ... it is not clear what the solution is.
15 The sequence seems to be x2, +2, -1.
18
15
15.
15,30,32,31,62,64,63..... (*2,+2,-1)
a,b,c,d = 1,2,4,3 b=2a c=b+2 d=c-1 7*2=14 14+2=16 16-1=15
17 19 20
Type your answer here... 15
15 (times 2, plus 2, minus 1)
The next number in the sequence is 15 - the sequence goes x2, +2, -1
15 Because...+2 -1 x2 +2 -1 x2 +2 (-1)
15