Implement PSER with ADD variant

p[n−1] = min(p[n] · ρ + p[n−1], max(..,p[n]))
p[n−2] = min(p[n] · ρ^2 + p[n−2], max(...,p[n]))
p[n−3] = min(p[n] · ρ^3 + p[n−3], max(...,p[n]))