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 two consecutive digits in the sequence is a prime.
A152607
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 two consecutive digits in the sequence is a prime.
Terms
- a(0) =1a(1) =3a(2) =7a(3) =9a(4) =71a(5) =73a(6) =79a(7) =711a(8) =713a(9) =717a(10) =971a(11) =973a(12) =1111a(13) =1113a(14) =1117a(15) =1119a(16) =7111a(17) =7113a(18) =7117a(19) =9711a(20) =9713a(21) =11111a(22) =11113a(23) =11117a(24) =11119a(25) =71111a(26) =71113a(27) =71117a(28) =97111a(29) =97113
External references
- oeis: A152607