Numbers k whose deficiency is 64: 2k - sigma(k) = 64.

Terms

a(0) =134a(1) =284a(2) =410a(3) =632a(4) =1292a(5) =1628a(6) =4064a(7) =9752a(8) =12224a(9) =22712a(10) =66992a(11) =72944a(12) =403988a(13) =556544a(14) =2161664a(15) =2330528a(16) =8517632a(17) =13228352a(18) =14563832a(19) =15422912a(20) =20732792a(21) =89472632a(22) =134733824a(23) =150511232a(24) =283551872a(25) =537903104a(26) =731670272a(27) =915473696a(28) =1846850576a(29) =2149548032