# A105110 (b-file synthesized from sequence entry) 0 0 1 0 2 2 3 0 4 6 5 6 6 0 7 12 8 12 9 156 10 0 11 20 12 20 13 420 14 820 15 0 16 30 17 30 18 930 19 1830 20 29730 21 0 22 42 23 42 24 1806 25 3570 26 79422 27 229362 28 0 29 56 30 56 31 3192 32 6328 33 185080 34 539448 35 10903928 36 0 37 72 38 72 39 5256 40 10440 41 388872 42 1140552 43 29139336 44 111259080 45 0 46 90 47 90 48 8190 49 16290