# A034756 (b-file synthesized from sequence entry) 1 1 2 4 3 11 4 35 5 96 6 310 7 932 8 3106 9 10719 10 40956 11 175024 12 856215 13 4745038 14 29240098 15 195682588 16 1397312405 17 10523188868 18 82994029902 19 682464226648 20 5833904550458 21 51727645023058 22 474880276916928 23 4506747119506932