Numbers m such that m divides Sum_{k=1..m} lambda(k).

Terms

a(0) =1a(1) =2a(2) =5a(3) =6a(4) =10a(5) =18a(6) =30a(7) =82a(8) =4866a(9) =8784a(10) =10170a(11) =23364a(12) =76296a(13) =247166a(14) =585570a(15) =735480a(16) =848754a(17) =1559520a(18) =2884840a(19) =11272940a(20) =35642420a(21) =56652788a(22) =174935486a(23) =196398413a(24) =679063441a(25) =1398826844a(26) =1542228164a(27) =1665703953a(28) =2699813692a(29) =5734751503