# A375716 (b-file synthesized from sequence entry) 0 1 1 0 2 0 3 0 4 4 5 10 6 20 7 35 8 3976 9 35364 10 205920 11 970365 12 37643980 13 670990606 14 7705037704 15 69043474955 16 1690055888080 17 43135620048200 18 793592298255936 19 11401734214307769 20 250361353418216340 21 7380072768323315410 22 187670442928777057480 23 3868359812089009616071