# A075856 (b-file synthesized from sequence entry) 1 1 2 1 3 3 4 2 5 10 6 15 7 6 8 40 9 105 10 105 11 24 12 196 13 700 14 1260 15 945 16 120 17 1148 18 5068 19 12600 20 17325 21 10395 22 720 23 7848 24 40740 25 126280 26 242550 27 270270 28 135135 29 5040 30 61416 31 363660 32 1332100 33 3213210 34 5045040 35 4729725 36 2027025