# A209036 (b-file synthesized from sequence entry) 1 1 2 2 3 36 4 984 5 43800 6 2868480 7 259554960 8 31012490880 9 4728875800320 10 896042510496000 11 206523228759724800 12 56893926736333209600 13 18461230471787348044800 14 6968851610446509386803200