A185668 - OEIS

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A185668

Final prime of first member of A019518 that is divisible by 19^n.

%I #6 Jul 02 2017 12:21:22

%S 271,1831,66947,3746299,66478091,66478091,57260418041

%N Final prime of first member of A019518 that is divisible by 19^n.

%e The first concatenation of primes--23, 235, 2357, 235711, etc.--that is divisible by 19 concatenates through 271, and to get divisibility by 19^2 it's necessary to go through 1831.

%Y Cf. A183194, A185656, and those following.

%K nonn,base,more

%O 1,1

%A _James G. Merickel_, Feb 01 2011