250600domain: NAppears in sequencesNumbers whose base-12 representation has exactly 6 runs.at n=25A043655a(1)=11, If a(n-1)=abcde..., where a,b,c,d,e... are the digits, then a(n)=abcde...+a*bcde...+ab*cde...+abc*de...+abcd*e...+....at n=21A108722