▁John ▁Les in ski ▁Sr . ▁( 1 8 8 5 - 1 9 5 0 ), ▁U . S . ▁Represent ative ▁from ▁Michigan ▁ ▁John ▁Les in ski ▁Jr . ▁( 1 9 1 4 - 2 0 0 5 ), ▁U . S . ▁Represent ative ▁from ▁Michigan ▁ ▁See ▁also ▁ ▁T . ▁John ▁Les in ski , ▁politician ▁and ▁jur ist ▁from ▁Wayne ▁County , ▁Michigan <0x0A> </s> ▁In ▁number ▁theory , ▁a ▁prime ▁k - tuple ▁is ▁a ▁finite ▁collection ▁of ▁values ▁representing ▁a ▁repeat able ▁pattern ▁of ▁differences ▁between ▁prime ▁numbers . ▁ ▁For ▁a ▁k - tuple ▁( a , ▁b , ▁... ), ▁the ▁positions ▁where ▁the ▁k - tuple ▁matches ▁a ▁pattern ▁in ▁the ▁prime ▁numbers ▁are ▁given ▁by ▁the ▁set ▁of ▁integers ▁n ▁such ▁that ▁all ▁of ▁the ▁values ▁( n ▁+ ▁a , ▁n ▁+ ▁b , ▁...) ▁are ▁prime . ▁Typ ically ▁the ▁first ▁value ▁in ▁the ▁k - tuple ▁is ▁ 0 ▁and ▁the ▁rest ▁are ▁distinct ▁positive ▁even ▁numbers . ▁ ▁N amed ▁patterns ▁Several ▁of ▁the ▁short est ▁k - tu ples ▁are ▁known ▁by ▁other ▁common ▁names : ▁ ▁O E IS ▁sequence ▁ ▁covers ▁ 7 - tu ples ▁( prime ▁sept u ple ts ) ▁and ▁contains ▁an ▁over view ▁of ▁related ▁sequences , ▁e . g . ▁the ▁three ▁sequences ▁corresponding ▁to ▁the ▁three ▁adm iss ible ▁ 8 - tu ples ▁( prime ▁oct u ple ts ), ▁and ▁the ▁union ▁of