Digits composite, each digit minus 1 is prime, sum of digits minus 1 is prime, difference of digits (in absolute value) minus 1 is prime.
A058229
Digits composite, each digit minus 1 is prime, sum of digits minus 1 is prime, difference of digits (in absolute value) minus 1 is prime.
Terms
- a(0) =4a(1) =6a(2) =8a(3) =48a(4) =84a(5) =444a(6) =446a(7) =464a(8) =488a(9) =648a(10) =666a(11) =668a(12) =684a(13) =686a(14) =848a(15) =866a(16) =884a(17) =888a(18) =4448a(19) =4466a(20) =4484a(21) =4646a(22) =4664a(23) =4844a(24) =6444a(25) =6446a(26) =6464a(27) =6468a(28) =6486a(29) =6644
External references
- oeis: A058229