|
%I #9 Mar 11 2022 12:42:13
%S 0,2,30,264,7320,30960,1592640,38183040,394450560,2238969600,
%T 275106585600,4038941491200,689773321036800,20996629900646400,
%U 111964387062528000,2210304446558208000,642338416210563072000,19249748121316737024000,6980209591900198477824000
%N Least common multiple of n! and its arithmetic derivative.
%H Nathaniel Johnston, <a href="/A189103/b189103.txt">Table of n, a(n) for n = 1..200</a>
%F a(n) = lcm(n!,n!') = lcm(A000142(n),A068311(n)).
%e n = 5: 5! = 120, 120' = 244, lcm(120,244) = 7320 -> a(5) = 7320
%Y Cf. A068311, A083346, A083346, A085731, A086130, A189100, A189102.
%K nonn
%O 1,2
%A _Giorgio Balzarotti_, Apr 16 2011
|
