# A354860 (b-file synthesized from sequence entry) 1 2 2 3 3 30 4 35 5 2310 6 15015 7 34034 8 4849845 9 223092870 10 154040315 11 200560490130 12 742073813481 13 101416754509070 14 6541380665835015 15 55899071144408310 16 5431526412865007455 17 54936010004406075402 18 4511091590746421960895 19 2619440517026755685293030 20 278970415063349480483707695