%I #3 Jul 21 2014 01:14:37
%S 1,3,336,80510976,4632013631072036192256,
%T 9259244309598002961669050091730162686136971834955923456
%N Products of successive blocks of 2^n terms of A245180.
%e a(2) = 1*8*3*14 = 336.
%Y Cf. A245180.
%K nonn
%O 0,2
%A _N. J. A. Sloane_, Jul 21 2014