Numbers k such that for any positive integers (a, b), if a * b = k then a + b is prime.

Terms

a(0) =1a(1) =2a(2) =6a(3) =10a(4) =22a(5) =30a(6) =42a(7) =58a(8) =70a(9) =78a(10) =82a(11) =102a(12) =130a(13) =190a(14) =210a(15) =310a(16) =330a(17) =358a(18) =382a(19) =442a(20) =462a(21) =478a(22) =562a(23) =658a(24) =742a(25) =838a(26) =862a(27) =970a(28) =1038a(29) =1222