# A365609 (b-file synthesized from sequence entry) 0 1 1 0 2 1 3 1 4 4 5 9 6 27 7 78 8 231 9 715 10 2193 11 6954 12 21999 13 70840 14 228896 15 746650 16 2447757 17 8072208 18 26745627 19 89002364 20 297344960 21 996865397 22 3352918429 23 11310307593 24 38256171642 25 129718262583 26 440855654827 27 1501451066767 28 5123671576890 29 17516503865294