OFFSET
1,2
LINKS
Jean-Marc Falcoz, Table of n, a(n) for n = 1..1500
EXAMPLE
The first terms 1, 2, 7, 19, 3, 73, 9, ... form (when 3 successive digits are concatenated) the prime numbers 127, 271, 719, 193, 937, 373, 739, ...
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Eric Angelini and Jean-Marc Falcoz, Sep 05 2020
STATUS
approved