# A378466 (b-file synthesized from sequence entry) 0 1 1 2 2 10 3 63 4 444 5 3351 6 26490 7 216523 8 1815080 9 15519271 10 134817972 11 1186570526 12 10557959696 13 94817735251 14 858333997230 15 7823946906726 16 71751021314438 17 661541649024816 18 6128551736153622 19 57018343512420580 20 532529776531703666 21 4991007108135966433