# A192513 (b-file synthesized from sequence entry) 1 2 2 4 3 24 4 64 5 512 6 1728 7 13312 8 32768 9 373248 10 1310720 11 10903552 12 35831808 13 287965184 14 1240465408 15 10319560704 16 26843545600 17 331895275520 18 1253826625536 19 10690521726976 20 34359738368000 21 347727917481984 22 1307761908383744 23 11445236333019136 24 30814043149172736