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a(n) = binomial(n!, lcm(1,...,n)).
0

%I #9 Mar 15 2018 04:14:20

%S 1,1,1,2704156,96614908840363322603893139521372656,

%T 26390396795222677975727207509769281627761276862587589456302534175336254818515595864127888

%N a(n) = binomial(n!, lcm(1,...,n)).

%F a(n) = binomial(A000142(n), A003418(n)).

%o (PARI) a(n) = binomial(n!, lcm(vector(n, k, k))); \\ _Michel Marcus_, Mar 15 2018

%Y Cf. A000142, A003418.

%K nonn

%O 0,4

%A _Labos Elemer_, Apr 01 2003