Nonprimes such that it takes exactly 3 iterations of reverse-and-add digits to generate a prime.

Terms

a(0) =280a(1) =290a(2) =10063a(3) =10081a(4) =10171a(5) =10372a(6) =10382a(7) =10393a(8) =10451a(9) =10462a(10) =10552a(11) =10561a(12) =10562a(13) =10573a(14) =10652a(15) =10783a(16) =10871a(17) =10943a(18) =10951a(19) =10952a(20) =10961a(21) =10963a(22) =11053a(23) =11141a(24) =11183a(25) =11263a(26) =11362a(27) =11372a(28) =11441a(29) =11452