# A151408 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 5 4 12 5 34 6 97 7 287 8 887 9 2761 10 8833 11 28635 12 93897 13 312257 14 1046368 15 3539825 16 12066283 17 41387197 18 142887038 19 495828190 20 1729130445 21 6057385620 22 21303526484 23 75209346309 24 266413953357 25 946691896721 26 3373935569795 27 12056675023892 28 43193395482458 29 155104308523072 30 558187652361721 31 2012940278579932