# A160039 (b-file synthesized from sequence entry) 0 1 1 3 2 11 3 25 4 274 5 294 6 13068 7 13698 8 114064 9 1062864 10 120543840 11 123870240 12 19802759040 13 20247546240 14 289277533440 15 4420892649600 16 1223405590579200 17 1243166003251200 18 431565146817638400 19 437647401838080000