# A192313 (b-file synthesized from sequence entry) 1 1 2 2 3 5 4 13 5 34 6 91 7 247 8 680 9 1893 10 5319 11 15056 12 42867 13 122605 14 351898 15 1012729 16 2920521 17 8435362 18 24392655 19 70599403 20 204472264