Okla. Stat. tit. 84, § 84-227: Representation in advancements

If any child or other lineal descendant receiving advancement,

dies before the decedent, leaving issue, the advancement must be

taken into consideration in the division and distribution of the

estate, and the amount thereof must be allowed accordingly by the

representatives of the heirs receiving the advancement, in like

manner as if the advancement had been made directly to them.