# A117177 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 5 5 12 6 25 7 57 8 115 9 240 10 484 11 996 12 1987 13 4041 14 8071 15 16252 16 32527 17 65292 18 130558 19 261651 20 523271 21 1047533 22 2095138 23 4192255 24 8384449 25 16773161 26 33546227 27 67100496 28 134201373 29 268419000 30 536837755 31 1073709065 32 2147417864