Numbers k such that k mod phi(k) = lambda(k).

Terms

a(0) =20a(1) =42a(2) =100a(3) =156a(4) =272a(5) =294a(6) =342a(7) =500a(8) =660a(9) =780a(10) =1332a(11) =1980a(12) =2028a(13) =2058a(14) =2500a(15) =3900a(16) =4624a(17) =5256a(18) =5940a(19) =6498a(20) =7260a(21) =9312a(22) =10140a(23) =11772a(24) =12500a(25) =14406a(26) =17820a(27) =19500a(28) =21780a(29) =26364