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%I #12 Sep 08 2022 08:45:33
%S 79,559,4479,40319,403199,4435199,53222399,691891199,9686476799,
%T 145297151999,2324754431999,39520825343999,711374856191999,
%U 13516122267647999,270322445352959999,5676771352412159999,124888969753067519999
%N a(n) = (n! - 9)/9.
%C Original name: Natural numbers of the form (n!-9)/9.
%H Vincenzo Librandi, <a href="/A139184/b139184.txt">Table of n, a(n) for n = 6..300</a>
%p seq((factorial(n)-9)/9,n=6..25); # _Muniru A Asiru_, Oct 20 2018
%t Table[(n! - 9)/9, {n, 6, 20}]
%o (Magma) [(Factorial(n)-9)/9: n in [6..25]]; // _Vincenzo Librandi_, Jul 20 2011
%o (GAP) List([6..25],n->(Factorial(n)-9)/9); # _Muniru A Asiru_, Oct 20 2018
%Y Cf. A033312, A139172, A139173, A139174, A139175, A139176, A139177, A139183, A139184.
%K nonn,easy
%O 6,1
%A _Artur Jasinski_, Apr 11 2008
%E New name from _Jon E. Schoenfield_, Oct 19 2018
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