# A215118 (b-file synthesized from sequence entry) 1 1 2 5 3 25 4 625 5 18125 6 628125 7 25390625 8 1158515625 9 58308203125 10 3190470703125 11 187941103515625 12 11832996337890625 13 791834056298828125 14 56063448811767578125 15 4184231129351806640625 16 328154000925299072265625 17 26970505516268341064453125 18 2317475342690856231689453125