Arrange integers 1- 15 in a triangle such that the upper row consists of 5 integers, all other rows represent each the absolute values of the differences between the adjacent members of the row above so that the 5th row contains one number only.
A bad example:
4 7 15 10 2
3 12 5 8
9 7 * oops! Can't use 3 again.
Just wanted to explain the build-up..
Better luck to the solvers!
(In reply to re(4): computer solution
The reference you gave contains a further reference to a proof of impossibility for n>5 (triangle of 15):
Posted by Charlie
on 2016-02-04 10:46:56