# A249514 (b-file synthesized from sequence entry) 1 0 2 8 3 48 4 720 5 43968 6 910810592 7 11237392872 8 373293007784992 9 2163097181518680 10 25456855919300952 11 11435623194218822640 12 869331647875436971195778433312 13 28252119676370239260178565366349744 14 1204809438495318797522597458986895824 15 53363286980501252895913793418543990281912