User blog comment:Ynought/Extended degree function/@comment-35470197-20181230222231/@comment-36957202-20181230230129

/(0_{(1,1)}/) gets treated the exact same way

here # means the rest of the array (1,10,100,1000) turns into ((0,10+k,100+k,1000+k),(1+k,9,100+k,1000+k),(1+k,10+k,99,1000+k),(1+k,10+k,100+k,999))