# A052768 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 0 4 0 5 120 6 360 7 840 8 1680 9 3024 10 5040 11 7920 12 11880 13 17160 14 24024 15 32760 16 43680 17 57120 18 73440 19 93024 20 116280 21 143640 22 175560 23 212520 24 255024 25 303600 26 358800 27 421200 28 491400 29 570024 30 657720 31 755160 32 863040 33 982080 34 1113024