# A189760 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 6 4 9 5 14 6 33 7 62 8 177 9 414 10 1155 11 1719 12 2625 13 4018 14 6849 15 9770 16 17675 17 30206 18 90609 19 260343 20 336006 21 757995 22 1290874 23 2029875 24 4059746 25 7037655 26 17594075 27 50850483 28 68589598 29 186888243 30 373659254 31 1884639669