# A099041 (b-file synthesized from sequence entry) 0 1 1 8 2 24 3 58 4 128 5 270 6 556 7 1130 8 2280 9 4582 10 9188 11 18402 12 36832 13 73694 14 147420 15 294874 16 589784 17 1179606 18 2359252 19 4718546 20 9437136 21 18874318 22 37748684 23 75497418 24 150994888 25 301989830 26 603979716 27 1207959490 28 2415919040 29 4831838142 30 9663676348 31 19327352762