[1,9,54,270,1215,5103,20412,78732,295245,1082565,3897234,13817466,48361131,167403915,573956280,1951451352,6586148313,22082967873,73609892910,244074908070,805447196631,2646469360359,8661172452084,28242953648100,91789599356325,297398301914493,960825283108362,3095992578904722]
|