This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A139177 #12 Sep 08 2022 08:45:33
%S A139177 719,5759,51839,518399,5702399,68428799,889574399,12454041599,
%T A139177 186810623999,2988969983999,50812489727999,914624815103999,
%U A139177 17377871486975999,347557429739519999
%N A139177 a(n) = (n! - 7)/7.
%C A139177 Original name: Natural numbers of the form (n!-7)/7.
%H A139177 Vincenzo Librandi, <a href="/A139177/b139177.txt">Table of n, a(n) for n = 7..300</a>
%p A139177 seq((factorial(n)-7)/7,n=7..25); # _Muniru A Asiru_, Oct 20 2018
%t A139177 Table[(n! - 7)/7, {n, 7, 20}]
%o A139177 (Magma) [(Factorial(n)-7)/7: n in [7..25]]; // _Vincenzo Librandi_, Jul 20 2011
%o A139177 (GAP) List([7..25],n->(Factorial(n)-7)/7); # _Muniru A Asiru_, Oct 20 2018
%Y A139177 Cf. A033312, A139172, A139173, A139174, A139175, A139176, A139177, A139183, A139184.
%K A139177 nonn,easy
%O A139177 7,1
%A A139177 _Artur Jasinski_, Apr 11 2008
%E A139177 New name from _Jon E. Schoenfield_, Oct 19 2018