sorry, should be "1513"

P4 * (E(9,7,6,4,3,1) + E(7,5,4,2,1) + E(5,3,2) + E(3,1)+ 1 = 4! * (30 + 19 + 10 + 4 )+ 1 = 63 * 4! + 1= 1513

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