Hello there!

I didn't manage to solve a specific math riddle (anyway, i'm not a maths freak), maybe you can, so here it is:

http://img135.imageshack.us/img135/4...itrecopieq.png
where you can notice that:

An=n

Cn=An+Bn

Σ Cn= Σ odd Cn + Σ even Cn

The "odd Cn" and "even Cn" columns must be filled

**respectively** with odd results of An+Bn and even results of An+Bn

*For instance: If the result of A6+B6 is even, place the result in "Even Cn" column in the 6th line, and you put a 0 at the "Odd Cn" column in the same line.*

if the result is odd, it's the other way round. **Warning: An, Bn and Cn are natural numbers (zero excluded) !**
And the result of

**Σ odd Cn** must be also an odd number.

However , the terms B1, B2, B3, B4, ect... -of the sum ΣBn- have not to be increasing or decreasing numbers.

Accepting these instructions, how do you proceed to determine

*n max* and replace B1, B2, B3, ect.. with number in such manner we get

**ΣAn= Σ odd Cn** and

**ΣBn= Σ even Cn** at the same time?

Good luck!