Even numbers whose sum of proper (or aliquot) divisors is a prime.

Terms

a(0) =4a(1) =8a(2) =32a(3) =50a(4) =98a(5) =128a(6) =242a(7) =324a(8) =338a(9) =392a(10) =722a(11) =784a(12) =800a(13) =1058a(14) =1250a(15) =1444a(16) =2304a(17) =2312a(18) =2450a(19) =2704a(20) =2738a(21) =3600a(22) =3872a(23) =5408a(24) =5476a(25) =5618a(26) =6272a(27) =6728a(28) =7442a(29) =7688