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 A062098 #27 Jan 14 2024 12:37:34 %S A062098 7,14,42,168,840,5040,35280,282240,2540160,25401600,279417600, %T A062098 3353011200,43589145600,610248038400,9153720576000,146459529216000, %U A062098 2489811996672000,44816615940096000,851515702861824000 %N A062098 a(n) = 7 * n!. %H A062098 Harry J. Smith, <a href="/A062098/b062098.txt">Table of n, a(n) for n = 1..100</a> %H A062098 Luis Manuel Rivera, <a href="http://arxiv.org/abs/1406.3081">Integer sequences and k-commuting permutations</a>, arXiv preprint arXiv:1406.3081 [math.CO], 2014-2015. %F A062098 a(n) = n*a(n-1), a(1) = 7. %F A062098 a(n) = 7 * A000142(n) for n>0. - _Michel Marcus_, Aug 31 2013 %p A062098 G(x):=(x-8)/(1-x): f[0]:=G(x): for n from 1 to 19 do f[n]:=diff(f[n-1],x) od: x:=0: seq(-f[n],n=1..19); # _Zerinvary Lajos_, Apr 03 2009 %t A062098 Array[7 #! &, 19] (* _Michael De Vlieger_, Jul 01 2018 *) %o A062098 (PARI) { a=7; for (n=1, 100, write("b062098.txt", n, " ", a*=n) ) } \\ _Harry J. Smith_, Aug 01 2009 %o A062098 (GAP) List([1..20],n->7*Factorial(n)); # _Muniru A Asiru_, Jul 01 2018 %K A062098 nonn,easy %O A062098 1,1 %A A062098 Dan Henry (daniel.henry(AT)umit.maine.com), Jun 28 2001 %E A062098 More terms from Larry Reeves (larryr(AT)acm.org), Jul 05 2001 %E A062098 Offset changed from 7 to 1 by _Harry J. Smith_, Aug 01 2009