[1,1,4,12,43,163,656,2698,11344,48724,212399,
939687,4195518,18895902,85815964,392491390,
1804983326,8343871333,38761066926,180795136179,
846325495536,3975432440478,18731970424992,
88502758036004,419206009153425,1990366204167853,
9470375008073564,45149095508017120]
|