[1,1,2,4,9,24,63,183,537,1618,5055,15861,51109,
166314,547505,1827009,6133802,20809959,71063163,
244205379,844896468,2936454598,10260887025,
36010311788,126874109569,448803378080,
1592742931810,5671060122989,20251948686857,
72515863744189,260339300061495,936826545096596]
|