# A323845 (b-file synthesized from sequence entry) 1 1 2 4 3 6 4 21 5 45 6 144 7 378 8 1161 9 3321 10 10044 11 29646 12 89181 13 266085 14 798984 15 2392578 16 7179921 17 21526641 18 64586484 19 193720086 20 581179941 21 1743421725 22 5230324224 23 15690618378 24 47072032281 25 141215033961 26 423645633324 27 1270933711326 28 3812802728301 29 11438398618965 30 34315200639864