# A326008 (b-file synthesized from sequence entry) 0 1 1 4 2 14 3 40 4 155 5 596 6 2954 7 14784 8 83955 9 494060 10 3112246 11 20505484 12 141656697 13 1020670280 14 7650120170 15 59509447736 16 479350116043 17 3990968968884 18 34287091686110 19 303500118414180 20 2764254404207136 21 25873492982703592 22 248602031383697602 23 2449525056696683760 24 24727324378709830225 25 255512480002690958696 26 2700450457984818382502 27 29169124796849950540212 28 321787888546754475501470 29 3623188502069809345093500