A111137 Concatenation of digits of A056129(n), starting from the first 3, that form primes.
3, 31, 311, 3113197, 3113197331
Offset: 1
Examples
A056129: 1,2,6,3,1,1,3,1,9,7,3,3,1 ........ 3 is prime 31 is prime 311 is prime 3113197 is prime 3113197331 is prime Next one has 279 digits
Crossrefs
Subsequence of A030096.
Comments