The nephews of your first cousin once removed, like the children of your first cousin once removed, are your first cousins twice removed.
The child of your first cousin, once removed, is your first cousin, twice removed, if your first cousin once removed is the child of your first cousin. If your first cousin once removed in the first cousin of one of your parents, the child is your second cousin.
The son of your second cousin is your second cousin, once removed. You are also his second cousin, once removed.
If your first cousin once removed is your parent's first cousin, then your first cousin once removed is your child's first cousin twice removed.If your first cousin once removed is the child of your first cousin, then your first cousin once removed is your child's second cousin.
Your father's first cousin, once removed, is your 2nd cousin. Your father's second cousin, once removed, is your third cousin.
Your parent's first cousin is your first cousin, once removed. Your parent's first cousin, once removed is your first cousin, twice removed. Your parent's second cousin is your second cousin, once removed. Your parent's second cousin, once removed is your second cousin, twice removed.
The son of your First Cousin Once Removed, is your First Cousin Twice Removed.
The child of your first cousin, once removed, is your first cousin, twice removed.
The daughter of your first cousin once removed is your first cousin twice removed, or your second cousin, depending on which generation your are in compared to your first cousin once removed.
It means they are one generation removed from you on your family tree. Your second cousin once removed is either your parent's second cousin, or your second cousin's child.
The children of your first cousin once removed are your first cousins, twice removed, or they are your second cousins, depending. The children of your second cousin once removed are your second cousins, twice removed, or they are your third cousins, depending.
Your first cousin and your children are first cousin, once removed. Your second cousin and your children are second cousins, once removed. Your third cousins and your children are third cousins, once removed. And so forth.