# A110746 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 4 5 8 6 136 7 272 8 1360 9 14960 10 254320 11 6103680 12 30518400 13 335702400 14 8056857600 15 499525171200 16 63439696742400 17 1649432115302400 18 94017630572236800 19 5923110726050918400 20 1528162567321136947200 21 385096966964926510694400 22 93963659939442068609433600