# A152341 (b-file synthesized from sequence entry) 1 1 2 2 3 6 4 24 5 120 6 656 7 4080 8 27072 9 220604 10 1882092 11 18317858 12 187501438 13 2071008996 14 24972179932 15 315181758186 16 4341516164432