a(1) = 1; thereafter a(n) is always the smallest integer > a(n-1) not leading to a contradiction, such that the concatenation of any three consecutive digits in the sequence is a prime.
A152608
a(1) = 1; thereafter a(n) is always the smallest integer > a(n-1) not leading to a contradiction, such that the concatenation of any three consecutive digits in the sequence is a prime.
Terms
- a(0) =1a(1) =2a(2) =7a(3) =19a(4) =37a(5) =39a(6) =71a(7) =91a(8) =93a(9) =733a(10) =739a(11) =773a(12) =971a(13) =977a(14) =3311a(15) =3733a(16) =7331a(17) =7337a(18) =9719a(19) =9773a(20) =31131a(21) =31137a(22) =33113a(23) =73311a(24) =311311a(25) =311313a(26) =733113a(27) =733131a(28) =733137a(29) =971911
External references
- oeis: A152608