[1,1,9,18,64,172,477,1368,3681,10485,28701,80829,
225090,632160,1778553,5010948,14181849,40161357,
114151716,324873027,926918784,2649218580,
7585705665,21758756931,62508649059,179859399129,
518234494662,1495275239115,4319808231645,
12495043092609,36183457564425]
|