Primes in which no digit is coprime to its neighbors.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =263a(5) =269a(6) =463a(7) =863a(8) =2269a(9) =2633a(10) =2663a(11) =2693a(12) =2699a(13) =4463a(14) =4639a(15) =4663a(16) =6263a(17) =6269a(18) =6469a(19) =6863a(20) =6869a(21) =8263a(22) =8269a(23) =8663a(24) =8669a(25) =8693a(26) =8699a(27) =8863a(28) =22469a(29) =22639