SOLUTION: What is the next number in this sequence: 1/2,2,5,11,23,47,95....?

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Question 979737: What is the next number in this sequence: 1/2,2,5,11,23,47,95....?
Answer by ikleyn(52798) About Me  (Show Source):
You can put this solution on YOUR website!

The general formula for this sequence is

a%5Bk%5D = 2%2Aa%5Bk-1%5D + 1,     k = 2, 3, 4, 5, 6, 7, . . .

Thus the member for  k = 8  should be   2*95 + 1 = 190 + 1 = 191.