Numbers k such that floor(Sum_{d|k} 1 / sigma(d)) = 3.

Terms

a(0) =110880a(1) =166320a(2) =221760a(3) =277200a(4) =327600a(5) =332640a(6) =360360a(7) =388080a(8) =393120a(9) =415800a(10) =443520a(11) =471240a(12) =480480a(13) =491400a(14) =498960a(15) =526680a(16) =540540a(17) =554400a(18) =556920a(19) =582120a(20) =589680a(21) =600600a(22) =622440a(23) =637560a(24) =655200a(25) =665280a(26) =693000a(27) =720720a(28) =776160a(29) =786240