# A094600 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 5 4 9 5 28 6 48 7 145 8 250 9 831 10 1404 11 4664 12 7875 13 26748 14 44960 15 154265 16 258777 17 896644 18 1501060 19 5239975 20 8758640 21 30760060 22 51350784 23 181258264 24 302271736 25 1071490551 26 1785262500 27 6351444132 28 10574365725 29 37738804488 30 62788919872