Numbers whose anti-divisors sum to a prime.

Terms

a(0) =3a(1) =4a(2) =5a(3) =12a(4) =13a(5) =24a(6) =41a(7) =60a(8) =84a(9) =113a(10) =144a(11) =180a(12) =264a(13) =265a(14) =312a(15) =480a(16) =761a(17) =1012a(18) =1104a(19) =1105a(20) =1201a(21) =1405a(22) =1624a(23) =1740a(24) =1741a(25) =1861a(26) =2112a(27) =2113a(28) =3281a(29) =4140