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a(n) = A001142(n)/A002944(n), i.e., the product of C(n,j) binomial coefficients (for j=0..n) is divided by the least common multiple of them.
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%I #8 Jul 29 2017 03:52:13

%S 1,1,3,8,250,2700,252105,39337984,46664771328,12859560000000,

%T 100271725559775000,155537541908508672000,8147102459616398435002560,

%U 1112629444624748831692923019008,198709463856994388404947123486328125

%N a(n) = A001142(n)/A002944(n), i.e., the product of C(n,j) binomial coefficients (for j=0..n) is divided by the least common multiple of them.

%o (PARI) a(n) = my(v = vector(n+1, j, binomial(n, j-1))); prod(k=1, #v, v[k])/ lcm(v); \\ _Michel Marcus_, Jul 29 2017

%Y Cf. A001142, A002944.

%K nonn

%O 1,3

%A _Labos Elemer_, Mar 10 2004