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%I #2 Mar 30 2012 16:51:15
%S 1,305,6815585,1077270776465,626055764653322945,
%T 968553361387420436695025,3286322019402928956112227932705,
%U 21485762937086358457367440231243675985,246710262382186399710713892753099905250964865,4640407584638100957359112105517273132340130164039345
%N A bisection of A002437.
%K nonn
%O 0,2
%A _N. J. A. Sloane_, Nov 06 2009