Nonprimes such that it takes exactly 5 iterations of reverse-and-add digits to generate a prime.
A245210
Nonprimes such that it takes exactly 5 iterations of reverse-and-add digits to generate a prime.
Terms
- a(0) =1001320a(1) =1001720a(2) =1002220a(3) =1004420a(4) =1005520a(5) =1005710a(6) =1005910a(7) =1006120a(8) =1007420a(9) =1008710a(10) =1009220a(11) =1009510a(12) =1009610a(13) =1011220a(14) =1011620a(15) =1012120a(16) =1014320a(17) =1015420a(18) =1015610a(19) =1015810a(20) =1016020a(21) =1017320a(22) =1018610a(23) =1019120a(24) =1019410a(25) =1019510a(26) =1021120a(27) =1021520
External references
- oeis: A245210