[0,1,7,38,175,714,2653,9139,29563,90650,265401,
746142,2023566,5314008,13554912,33673525,81654104,
193646588,449903128,1025532912,2296519589,
5058078488,10968488747,23440057192,49406752403,
102792264765,211242738976,429066735314,
861868377262,1713014236294,3370525567099]
|