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 A308325 #10 May 21 2019 03:50:28
%S A308325 1,-44,44121,-66211704,120965241901,-247578134832564,
%T A308325 545591130328772081,-1266424080449896533104,3054976120222919562674421,
%U A308325 -7591388058951771019224668844,19313872514817534830089536344041,-50089152258417936550358713847686344
%N A308325 a(n) = Sum_{i=0..n} Sum_{j=0..n} Sum_{k=0..n} Sum_{l=0..n} Sum_{m=0..n} (-1)^(i+j+k+l+m) * (i+j+k+l+m)!/(i!*j!*k!*l!*m!).
%o A308325 (PARI) {a(n) = sum(i=0, 5*n, (-1)^i*i!*polcoef(sum(j=0, n, x^j/j!)^5, i))}
%o A308325 (PARI) {a(n) = sum(i=0, n, sum(j=0, n, sum(k=0, n, sum(l=0, n, sum(m=0, n, (-1)^(i+j+k+l+m)*(i+j+k+l+m)!/(i!*j!*k!*l!*m!))))))}
%Y A308325 Column k=5 of A308322.
%K A308325 sign
%O A308325 0,2
%A A308325 _Seiichi Manyama_, May 20 2019