[1,1,3,8,24,73,227,734,2430,8150,27718,95514,
332578,1168261,4136477,14749992,52925886,
190973410,692583902,2523265494,9231352260,
33901898722,124940568222,461938289518,
1713007181342,6369928427268,23747917426918,
88747514693530,332397792962692,1247582980566935,
4691740496135919,17676678143316236,
66714895880626460,252207367615436780]
|