| 数据
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1, 3, 9, 25, 66, 168, 417, 1014, 2427, 5737, 13412, 31088, 71506, 163378, 371272, 839248, 1889019, 4235082, 9459687, 21067566, 46769977, 103574916, 228808544, 504286803
1, -1, -4, -12, -45, -188, -835, -3849, -18242, -88265, -434295, -2165198, -10915089, -55534781, -284708699, -1470350760, -7628363273, -39878267745, -208458228964, -1103369168956, -5771541600014
|