NRS 134.040: Surviving spouse and issue.

1. If the decedent leaves a surviving spouse and only one child, or the lawful issue of one child, the estate goes one-half to the surviving spouse and one-half to the child or the issue of the child.

2. If the decedent leaves a surviving spouse and more than one child living, or a child and the lawful issue of one or more deceased children, the estate goes one-third to the surviving spouse and the remainder in equal shares to the children and the lawful issue of any deceased child by right of representation.