# A130683 (b-file synthesized from sequence entry) 0 4 1 16 2 96 3 768 4 7680 5 92160 6 1290240 7 20643840 8 371589120 9 7431782400 10 163499212800 11 3923981107200 12 102023508787200 13 2856658246041600 14 85699747381248000 15 2742391916199936000 16 93241325150797824000 17 3356687705428721664000 18 127554132806291423232000