Sesqui-third-cousin: has among themselves; different two parents, different four grandparents, different eight great-grandparents, three great-great-grandparents in common and different thirteen great-great-grandparents.
My sesqui-3C is a good person.
7.5-tuple-third-cousin: has among themselves; different two parents, different four grandparents, different eight great-grandparents, fifteen great-great-grandparents in common and different one great-great-grandparent.
My 7.5-tuple-3C is a good person.
Octuple-third-cousin: has among themselves; different two parents, different four grandparents, different eight great-grandparents and sixteen great-great-grandparents in common.
My octuple-3C is a good person.
Third-cousin: great-grandparent's full sibling's great-grandchild. Has among themselves; different two parents, different four grandparents, different eight great-grandparents, two great-great-grandparents in common and different fourteen great-great-grandparents.
My 3C is a good person.