Sequence

Caporegime
Joined
20 May 2007
Posts
36,379
Location
Surrey
85

I think

the differences are 1,4,10,22,46.

get this by multiplying the difference before by 2 and adding 2.
 
Associate
Joined
9 Jul 2007
Posts
511
Location
Ramsgate, Kent
Not sure what the answer is but I know for sure this is a part of the methodology behind it all.


2z8575v.jpg


Could it be...
2w4d5rk.gif
?!
 
Last edited:
Soldato
Joined
18 Oct 2002
Posts
3,926
Location
SW London
2, 3, 7, 17, 39, ??

2 -> 3 is multiplied by 2, subtract 1
3 -> 7 is multiplied by 2, add 1
7 -> 17 is multiplied by 2, add 3
17 -> 39 is multiplied by 2, add 5
so next one will be multiplied by 2, add 7 which is 85 as people have pointed out.
 
Caporegime
Joined
20 May 2007
Posts
36,379
Location
Surrey
2, 3, 7, 17, 39, ??

2 -> 3 is multiplied by 2, subtract 1
3 -> 7 is multiplied by 2, add 1
7 -> 17 is multiplied by 2, add 3
17 -> 39 is multiplied by 2, add 5
so next one will be multiplied by 2, add 7 which is 85 as people have pointed out.

i dont think thats the correct explanation though as the first one doesnt fit.
 
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