%I #4 Apr 10 2023 15:18:33
%S 3,5560,14350,76972,239123,2067170,19320438,748459491,1273027965,
%T 6925699528,7758433284,8408679517
%N Numbers k such that 7^k starts with k.
%Y For k such that b^k starts with n, for b = 2,..., 9, see A100129, A362096, A320930, A362097-A362101.
%K nonn,base,more
%O 1,1
%A _N. J. A. Sloane_, Apr 10 2023, based on an email from _Keith F. Lynch_.