W(15, 1) =                                                                 1
W(15, 2) =                                                             16384
W(15, 3) =                                                          19383672
W(15, 4) =                                                       24335048679
W(15, 5) =                                                    46521924780255
W(15, 6) =                                                105043595925333255
W(15, 7) =                                             242108399244641421526
W(15, 8) =                                          558044223844519272676141
W(15, 9) =                                      1294228007560478044464188014
W(15,10) =                                   3026065681121995657331049388171
W(15,11) =                                7122279869660711072637404183374811
W(15,12) =                            16846202313728151287180674479245984129
W(15,13) =                         39998656352715392458211293438906385119970
W(15,14) =                      95262966612892063156874389817827456761021038
W(15,15) =                  227449714676812739631826459327989863387613323440
W(15,16) =               544153218633291055333005955373503380344455231720156
W(15,17) =           1303949463726800479567050586474874803419007600650103638
W(15,18) =        3128711042823236250260024108446485968800356758589577016646
W(15,19) =     7514901779717963705978192506823563289469102955658338970126326
W(15,20) = 18065251836996975790472937289751595742358854920978934398187863788