# A137946 (b-file synthesized from sequence entry) 1 1 2 0 3 0 4 6 5 0 6 12 7 0 8 108 9 108 10 0 11 720 12 720 13 0 14 7920 15 11160 16 3240 17 0 18 90720 19 136080 20 45360 21 0 22 1300320 23 2222640 24 1058400 25 136080 26 0 27 20563200 28 37376640 29 20079360 30 3265920 31 0 32 372314880 33 726667200 34 453146400 35 106142400 36 7348320