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Primes of the form 11^n - 10^n.
2

%I #15 Sep 08 2022 08:46:00

%S 331,61051,51159090448414546291

%N Primes of the form 11^n - 10^n.

%C The next term is too large to include (see A062577).

%H Vincenzo Librandi, <a href="/A199820/b199820.txt">Table of n, a(n) for n = 1..6</a>

%t Select[11^Range[3000]-10^Range[3000],PrimeQ]

%o (Magma) [ a: n in [0..300] | IsPrime(a) where a is 11^n-10^n ]

%Y Cf. A062577.

%K nonn,bref

%O 1,1

%A _Vincenzo Librandi_, Nov 21 2011