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%I #5 Mar 30 2012 18:35:34
%S 19487171,1801088541,27512614111,194754273881,897410677851,
%T 3142742836021,9095120158391,22876792454961,51676101935731,
%U 107213535210701,194871710000000,207616015289871,379749833583241
%N Seventh powers ending nontrivially in a nonzero seventh power.
%K nonn,base,easy
%O 1,1
%A _David W. Wilson_