# A306564 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 6 5 10 6 12 7 18 8 20 9 28 10 36 11 48 12 84 13 132 14 393 15 657 16 744 17 1140 18 1580 19 2704 20 3244 21 8700 22 12250 23 17395 24 17860 25 19505 26 36785 27 59100 28 67805 29 97440