# A148010 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 8 5 15 6 44 7 101 8 334 9 817 10 2752 11 7084 12 24607 13 67680 14 245864 15 697772 16 2553885 17 7409054 18 27480303 19 82521955 20 313794525 21 959852546 22 3664001178 23 11345504079 24 43619693769 25 138028015239 26 539448885144 27 1727930112762 28 6767820538432 29 21845264940373 30 85933511671898 31 281615411418059 32 1121090889944370