# A086348 (b-file synthesized from sequence entry) 0 1 1 8 2 32 3 168 4 784 5 3840 6 18432 7 89216 8 430336 9 2078720 10 10035200 11 48457728 12 233967616 13 1129709568 14 5454692352 15 26337640448 16 127169265664 17 614027755520 18 2964787822592 19 14315262836736