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 A071550 #14 Sep 08 2022 08:45:06 %S A071550 1,40320,81729648000,369398958888960000,2390461829733887910000000, %T A071550 18975581770994682860770223800320, %U A071550 171889289584866507880743491472699801600 %N A071550 a(n) = (8n)!/n!^8. %H A071550 Vincenzo Librandi, <a href="/A071550/b071550.txt">Table of n, a(n) for n = 0..100</a> %t A071550 Table[(8 n)!/(n)!^8, {n, 0, 20}] (* _Vincenzo Librandi_, Aug 13 2014 *) %o A071550 (Magma) [Factorial(8*n)/Factorial(n)^8: n in [0..20]]; // _Vincenzo Librandi_, Aug 13 2014 %Y A071550 Sequences (k*n)!/n!^k: A000984 (k = 2), A006480 (k = 3), A008977 (k = 4), A008978 (k = 5), A008979 (k = 6), A071549 (k = 7), A071551 (k = 9), A071552 (k = 10). %K A071550 nonn %O A071550 0,2 %A A071550 _Benoit Cloitre_, May 30 2002