# A092204 (b-file synthesized from sequence entry) 1 5 2 72 3 120 4 240 5 1560 6 840 7 1848 8 7728 9 9240 10 21840 11 10920 12 55440 13 236208 14 469560 15 207480 16 175560 17 185640 18 314160 19 120120 20 885360 21 2282280 22 526680 23 5542680 24 5383560 25 6366360 26 2042040 27 4564560 28 5091240 29 6440280 30 2984520 31 7382760