# A303342 (b-file synthesized from sequence entry) 0 1 1 6 2 72 3 1008 4 10746 5 130896 6 1569456 7 17371584 8 192625128 9 2260005462 10 24725148912 11 270748885392 12 3027318848208 13 32608207056528 14 354309508944288 15 3902606972751168 16 41393526342215994 17 443390745816982944 18 4783687280410092984 19 50532141192366275280