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Primes with exactly nine 9's.
8

%I #2 Mar 31 2012 10:26:16

%S 9199999999,9299999999,9959999999,9995999999,9999499999,9999929999,

%T 9999959999,9999999929,10999999999,16999999999,19399999999,

%U 19909999999,19991999999,19999399999,19999990999,19999997999,19999999199

%N Primes with exactly nine 9's.

%Y Cf. A038618, A178550-A178557

%K nonn,base

%O 1,1

%A _Lekraj Beedassy_, May 29 2010