%I #4 Dec 05 2013 19:56:31

%S 1,2,21,420,8820,3704400,32672808000,121033149955200000,

%T 3954492870121458201600000000,

%U 478624728546179688151541712568320000000000000

%N a(1) = 1, a(2) = 2, a(n) = smallest multiple of n beginning with the product of two previous terms.

%C Observation: a(n) = a(n-1)*a(n-2) for most of the terms if n is composite and >4.

%Y Cf. A087545.

%K base,nonn

%O 1,2

%A _Amarnath Murthy_, Sep 13 2003

%E More terms from _David Wasserman_, Jun 03 2005