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Numbers k such that 7^k starts with k.
1

%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_.