# A253284 (b-file synthesized from sequence entry) 0 1 1 2 2 2 3 6 4 18 5 12 6 24 7 144 8 240 9 120 10 120 11 1200 12 3600 13 4200 14 1680 15 720 16 10800 17 50400 18 100800 19 90720 20 30240 21 5040 22 105840 23 705600 24 2116800 25 3175200 26 2328480 27 665280 28 40320 29 1128960 30 10160640 31 42336000 32 93139200 33 111767040 34 69189120 35 17297280