# A054137 (b-file synthesized from sequence entry) 3 2 4 8 5 31 6 97 7 264 8 654 9 1518 10 3366 11 7227 12 15169 13 31339 14 64043 15 129906 16 262192 17 527444 18 1058764 19 2122373 20 4250731 21 8508777 22 17026409 23 34063444 24 68139538 25 136294026 26 272605602 27 545231679 28 1090487109 29 2181001623