# A157835 (b-file synthesized from sequence entry) 0 1 1 13 2 42 3 1079 4 1722 5 21853 6 68922 7 3458143 8 2696442 9 33470203 10 103382202 11 2543904389 12 3897783162 13 47622059953 14 145048634682 15 14103257698751 16 5345548005882 17 64723086609103 18 195627183442362 19 4724479536886499 20 7123774068628602 21 85858009003835653 22 258510157720861242