[1,1,3,6,15,31,74,159,363,799,1800,3988,8945, 19893,44486,99153,221520,494187,1103789,2463834, 5502927,12288076,27448039,61308387,136966368, 305999360,683733350,1527844853,3414432569, 7631131801,17056871547,38127833992,85235556468]