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In a certain sequence the difference between the (N-1)th

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Re: Sequence DS [#permalink] New post 20 Oct 2010, 06:50
very good post....

first time i tried to go with the numbers and end up with a mess...

If i go and try to put some numbers in it, i would end up with the mess...

a(n_1) - a(n) = a(n)

==> a(n_1) = 2* a(n))
a(n-2) = 2* a(n_1)
==> 2*2* a(n)

----> I can get some where in the seq the value for (1) option and (2) option...
Re: Sequence DS   [#permalink] 20 Oct 2010, 06:50
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