OFFSET
1,1
EXAMPLE
Start with decimal expansion of Pi: 3,1,4,1,5,9,2,6,5,3,5,8,9,7,9,3,2,3,8,4,6,2,6,4,3...
Part the sequence to the sections with distinct digits: s={3,1,4},{1,5,9,2,6},{5,3},{5,8,9,7},{9,3,2},{3,8,4,6,2},{6,4,3},...
Then sequence are primes from digits of s(): 53, 5897, 643, ...
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Zak Seidov, Mar 27 2005
STATUS
approved