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A104520 Smallest semiprime containing exactly n 1's. 0

%I #2 Oct 02 2013 15:47:25

%S 10,115,111,1111,11111,1111114,1111111,110111111,1111111141,

%T 11101111111,11111111111,1111111111101,10111111111111,111111011111111,

%U 1111111111101111,10111111111111111,11111111111111111

%N Smallest semiprime containing exactly n 1's.

%e a(2)=115 because 115 is the smallest semiprime containing exactly two 1's.

%K base,nonn

%O 1,1

%A _Shyam Sunder Gupta_, Apr 24 2005

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)