3,11,7,26,51,()

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3,11,7,26,51,()3,11,7,26,51,()3,11,7,26,51,()3,11,7,26,51,(131)3×11=7+2611×7=26+51则7×26=51+?182=51+?

3,11,7,26,51,()
3,11,7,26,51,()

3,11,7,26,51,()
3,11,7,26,51,(131)
3×11=7+26
11×7=26+51
则7×26=51+?
182=51+?
=131