## Monday, September 14, 2009

### Next in Line

What comes next in this sequence?

5 8 26 48 122 ?

1. This comment has been removed by the author.

2. Ooops, make a mistake on the first guess. I'm saying it's 168.

3. Junk Logic: 5+8=13
13x2=26
48+122=170
170x2=340

4. Looks like there were some different patterns here.

I was going for consecutive primes squared. Then you add or subtract 1 from the answer. So:
2^2 + 1 = 5.
3^2 - 1 = 8.
5^2 + 1 = 26.
7^2 - 1 = 48.
11^2 + 1 = 122.
13^2 - 1 = 168

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