%I #5 Mar 30 2012 17:40:01
%S 2,2,8,2,5,2,5,4,8,7,2,8,1,5,7,5,8,1,2,4,8,5,7,2,8,2,1,5,5,7,7,4,5,4,
%T 5,8,1,7,2,1,5,8,2,4,2,8,5,7,4,2,4,8,5,2,2,8,7,1,4,4,8,2,4,8,7,2,8,1,
%U 5,2,4,2,1,2,4,5,5,7,8,1,7,2,8,5,8,2,8,2,5,7,8,2,1,5,8,5,1,5,7,8,7,2,5,2,4
%N Digital root of Ramanujan primes (A104272).
%H Eric W. Weisstein, <a href="http://mathworld.wolfram.com/RamanujanPrime.html">Ramanujan Prime</a>
%e 659 is a Ramanujan's prime whose digital root is 2.
%Y A104272
%K nonn,base
%O 1,1
%A _Parthasarathy Nambi_, Jun 22 2009
%E a(53) corrected by _R. J. Mathar_, Jul 08 2009
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