cp's OEIS Frontend

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.

A134375 a(n) = (n!)^4.

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%I A134375 #20 Oct 04 2018 18:26:07
%S A134375 1,1,16,1296,331776,207360000,268738560000,645241282560000,
%T A134375 2642908293365760000,17340121312772751360000,
%U A134375 173401213127727513600000000,2538767161403058526617600000000,52643875858853821607942553600000000,1503561738404723998944447273369600000000
%N A134375 a(n) = (n!)^4.
%C A134375 a(n) is also the determinant of the symmetric n X n matrix M defined by M(i,j) = sigma_4(gcd(i,j)) for 1 <= i,j <= n, and n>0, where sigma_4 is A001159. - _Enrique Pérez Herrero_, Aug 13 2011
%H A134375 Alois P. Heinz, <a href="/A134375/b134375.txt">Table of n, a(n) for n = 0..100</a>
%F A134375 a(n) = det(S(i+4,j), 1 <= i,j <= n), where S(n,k) are Stirling numbers of the second kind. - _Mircea Merca_, Apr 04 2013
%p A134375 a:= n-> (n!)^4:
%p A134375 seq(a(n), n=0..20);  # _Alois P. Heinz_, Aug 15 2013
%t A134375 Table[((n)!)^(4), {n, 0, 10}]
%Y A134375 Cf. A000142, A001044, A000442, A036740, A010050, A009445, A134366, A134367, A134368, A134369, A134371, A134372, A134373, A134374.
%Y A134375 Row n=4 of A225816.
%K A134375 nonn
%O A134375 0,3
%A A134375 _Artur Jasinski_, Oct 22 2007