# A291583 (b-file synthesized from sequence entry) 0 1 1 2 2 4 3 8 4 18 5 36 6 72 7 144 8 292 9 586 10 1172 11 2344 12 4696 13 9396 14 18792 15 37584 16 75186 17 150380 18 300764 19 601528 20 1203092 21 2406200 22 4812408 23 9624816 24 19249704 25 38499446 26 76998908 27 153997824 28 307995792 29 615991660 30 1231983352 31 2463966720 32 4927933732 33 9855867616