# A202856 (b-file synthesized from sequence entry) 0 1 1 2 2 5 3 14 4 44 5 152 6 569 7 2270 8 9524 9 41576 10 187348 11 866296 12 4092400 13 19684576 14 96156649 15 476038222 16 2384463044 17 12067926920 18 61641751124 19 317469893176 20 1647261806128 21 8605033903456 22 45228349510660 23 239061269168056 24 1270130468349904 25 6780349241182112 26 36355025167014224 27 195725149445320160 28 1057729059593103808