%I
%S 63,333,621,3339,4557,8127,13977,16827,18177,21921,27393,34989,40023,
%T 40047,46917,59727,61203,79467,94767,95079,100821,102771,104859,
%U 106527,113883,114123,143433,147123,156201,158409,160149,196737,209277,209961
%N Concatenations C1 and C2 and C3 are all prime (see the comment lines).
%C C1 = 'prevprime(n) followed by n'
%C C2 = 'n followed by nextprime(n)'
%C C3 = 'prevprime(n) followed by n followed by nextprime(n)'
%e n=95079 > previous prime is 95071, next prime is 95083, thus '9501795079' and '9507995083' and '950719507995083' are all three primes.
%Y Cf. A034808A034821.
%K nonn,base
%O 0,1
%A _Patrick De Geest_, Oct 15 1998
