# A173424 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 3 4 1 5 3 6 15 7 3 8 3 9 15 10 105 11 15 12 9 13 15 14 105 15 945 16 105 17 45 18 45 19 105 20 945 21 10395 22 945 23 315 24 225 25 315 26 945 27 10395 28 135135 29 10395 30 2835 31 1575 32 1575 33 2835 34 10395 35 135135 36 2027025 37 135135 38 31185 39 14175 40 11025 41 14175 42 31185 43 135135 44 2027025 45 34459425