Smallest semiprime containing exactly n 1's.

A104520

Smallest semiprime containing exactly n 1's.

Terms

    a(0) =10a(1) =115a(2) =111a(3) =1111a(4) =11111a(5) =1111114a(6) =1111111a(7) =110111111a(8) =1111111141a(9) =11101111111a(10) =11111111111

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