[21,7668,75545,545730,3015021,13239896,48243393, 151298070,420233285,1056651996,2446142121, 5282430218,10751650845,20796493440,38483939921, 68504620446,117836491893,196610583620, 319221957945,505734798546,783636668621, 1190003472168]