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 A182543 #12 Sep 02 2014 18:34:10
%S A182543 5,8,26,112,596,3768,27576,229248,2133792,21983040,248345280,
%T A182543 3052719360,40563521280,579385336320,8852682585600,144083913523200,
%U A182543 2488656760934400,45465350973235200,875935041046732800,17749186274340864000,377355425576693760000
%N A182543 Penultimate diagonal of triangle in A145879.
%H A182543 Alois P. Heinz, <a href="/A182543/b182543.txt">Table of n, a(n) for n = 3..200</a>
%F A182543 Recurrence (for n>=6): (n-5)*a(n) = (2*n^2 - 15*n + 26)*a(n-1) - (n-4)^2*(n-3)*a(n-2). - _Vaclav Kotesovec_, Sep 02 2014
%F A182543 a(n) ~ 2 * n! * (log(n) + gamma) / n^2, where gamma is the Euler-Mascheroni constant (A001620). - _Vaclav Kotesovec_, Sep 02 2014
%t A182543 Flatten[{5,8,26,RecurrenceTable[{-(-4+n)^2 (-3+n) a[-2+n]+(26-15 n+2 n^2) a[-1+n]+(5-n) a[n]==0,a[6]==112,a[7]==596},a,{n,6,25}]}] (* _Vaclav Kotesovec_, Sep 02 2014 *)
%Y A182543 Cf. A145879.
%K A182543 nonn
%O A182543 3,1
%A A182543 _N. J. A. Sloane_, May 04 2012
%E A182543 More terms from _Alois P. Heinz_, May 30 2012