Numbers which are primes and which remain prime for three successive applications of incrementing each digit by 2 with carries ignored.

A088787

Numbers which are primes and which remain prime for three successive applications of incrementing each digit by 2 with carries ignored.

Terms

    a(0) =61a(1) =97a(2) =227a(3) =449a(4) =661a(5) =797a(6) =881a(7) =1307a(8) =2797a(9) =3877a(10) =5477a(11) =5657a(12) =8297a(13) =8669a(14) =8849a(15) =8861a(16) =9887a(17) =11257a(18) =12517a(19) =15287a(20) =16487a(21) =17387a(22) =19427a(23) =20287a(24) =20897a(25) =23197a(26) =23957a(27) =25717a(28) =26227a(29) =30637

External references