# A159594 (b-file synthesized from sequence entry) 1 1 2 1 3 3 4 16 5 125 6 1301 7 17070 8 272976 9 5218727 10 118508219 11 3224104875 12 108226321884 13 4740041705554 14 291705715765328 15 26728599026539162 16 3688459631229579912 17 751246585455211054713 18 208348432365596381718906