# A146937 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 2 9 3 10 6 11 9 12 14 13 23 14 61 15 135 16 392 17 922 18 2676 19 7151 20 26809 21 87678 22 375597 23 1374921 24 6569486 25 27726558 26 157145315 27 778948913 28 5094691047 29 28915328479 30 216796412908