In the tutorial the charging energy is:
-10.17 -7.5 0.1 2.35
In the paper we report the ionization energies which is defined as -charging energy, thus the charging energies are
-7.70 -5.41 2.26 4.88
These are different from the tutorial, and the calculation in the paper is not correct, we used an alpha version of ATK which had a bug. We should make an errata to the paper.