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A271686型作为一个简单的表

n个a(n)
01
15
228
145
4624
52625
610864
743861
8175856
9710113
102832596
1111426185
1245425292
13182291585
14725671444
152934064869

[1,5,28,145,624,2625,10864,43861,175856,710113,2832596,11426185,45425292,182291585,725671444,2934064869]