# A151032 (b-file synthesized from sequence entry) 0 1 1 3 2 9 3 29 4 105 5 401 6 1565 7 6235 8 25435 9 105201 10 440165 11 1861067 12 7942453 13 34118021 14 147539839 15 641724317 16 2805400805 17 12314901173 18 54284939599 19 240146460337 20 1065873647065 21 4744406887317 22 21177750028993 23 94762922039031 24 425024963073671 25 1910295056145189 26 8603324765426951 27 38816474157873677