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A003671号作为一个简单的表

n个a(n)
00
-10
-20
-30
-40
-50
-60
-70
-80
-90
-105
-112
-129
-131
-147
-157
-162
-171
-180

[0,0,0,0,0,0,0,0,0,0,5,2,9,1,7,7,2,1,0]