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%I #10 Jun 09 2026 08:44:40
%S 1,1,128,279936,4586471424,358318080000000,100306130042880000000,
%T 82606411253903523840000000,173238200573946282828103680000000,
%U 828592942960967278432052230225920000000,8285929429609672784320522302259200000000000000,161469323688736156802100136913438716723200000000000000
%N a(n) = (n!)^7.
%F a(n) = A396225(n) * A000142(n).
%F a(n) = A001015(A000142(n)).
%t Table[n!^7, {n, 0, 11}]
%o (PARI) a(n)=n!^7
%Y Cf. A396452 (sum of reciprocals).
%Y Cf. A000142, A001015, A001044, A000442, A036740, A010050, A009445, A134366, A134367, A134368, A134369, A134371, A134372, A134373, A134374, A134375, A396224, A396225.
%Y Row n=7 of A225816.
%K nonn,easy
%O 0,3
%A _Kelvin Voskuijl_, May 20 2026