Balanced numbers (A020492) that are not arithmetic numbers (A003601).

Terms

a(0) =2a(1) =12a(2) =18630a(3) =27000a(4) =443394a(5) =6242022a(6) =14412720a(7) =22315419a(8) =26744100a(9) =44630838a(10) =50496960a(11) =106034880a(12) =128710944a(13) =148536990a(14) =162907584a(15) =212072880a(16) =218470770a(17) =296259930a(18) =349444530a(19) =397253968a(20) =535267776a(21) =641250900a(22) =641418960a(23) =666274653a(24) =684165552a(25) =688208724a(26) =709639408