Unitary arithmetic numbers k whose mean unitary divisor is a unitary divisor of k.

Terms

a(0) =1a(1) =6a(2) =60a(3) =420a(4) =630a(5) =5460a(6) =8190a(7) =16632a(8) =64260a(9) =143640a(10) =172900a(11) =598500a(12) =716625a(13) =790398a(14) =791700a(15) =1182384a(16) =1187550a(17) =1530144a(18) =2708160a(19) =4277448a(20) =5314680a(21) =6284250a(22) =6397300a(23) =6741630a(24) =14619150a(25) =15214500a(26) =22144500a(27) =24315984a(28) =87966648a(29) =93284100