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%I #17 Sep 08 2022 08:45:04
%S 2,33,555,7777,122221,1444443,18888887,211111109,2555555553,
%T 32222222219,344444444441,4111111111107,45555555555551,
%U 477777777777773,5222222222222217,58888888888888883,655555555555555549,6777777777777777771,74444444444444444437,788888888888888888881
%N a(n) = (10^n - 1)/9*prime(n).
%H Harry J. Smith, <a href="/A064008/b064008.txt">Table of n, a(n) for n = 1..100</a>
%F a(n) = A002275(n)*A000040(n). - _Michel Marcus_, Jun 22 2018
%t Table[(10^n - 1) / 9 Prime[n], {n, 20}] (* _Vincenzo Librandi_, Jun 22 2018 *)
%o (PARI) for(n=1,22,print((10^n-1)/9*prime(n)))
%o (PARI) { for (n=1, 100, write("b064008.txt", n, " ", (10^n - 1)/9*prime(n)) ) } \\ _Harry J. Smith_, Sep 05 2009
%o (Magma) [(10^n - 1) / 9*NthPrime(n): n in [1..20]]; // _Vincenzo Librandi_, Jun 22 2018
%Y Cf. A000040, A002275.
%K nonn
%O 1,1
%A _Jason Earls_, Sep 14 2001
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