# A341101 (b-file synthesized from sequence entry) 0 1 1 0 2 2 3 0 4 1 5 4 6 0 7 2 8 6 9 8 10 0 11 6 12 19 13 24 14 16 15 0 16 24 17 80 18 110 19 80 20 32 21 0 22 120 23 418 24 615 25 500 26 240 27 64 28 0 29 720 30 2604 31 4046 32 3570 33 1960 34 672 35 128 36 0 37 5040 38 18828 39 30604 40 28777 41 17360 42 6944 43 1792 44 256 45 0 46 40320 47 154944 48 261656 49 259056 50 167874 51 74592 52 22848 53 4608 54 512