# A166889 (b-file synthesized from sequence entry) 1 1 2 6 3 52 4 660 5 11385 6 251832 7 6842220 8 221228244 9 8311401351 10 356190316416 11 17160064580802 12 918453056609946 13 54085054802995008 14 3475794779752572784 15 242103490865991893116 16 18170143514998451547348