Number of ways to partition a 3*n X 3 grid into 9 connected equal-area regions.

A167246

Number of ways to partition a 3*n X 3 grid into 9 connected equal-area regions.

Terms

    a(0) =1a(1) =41a(2) =3127a(3) =44855a(4) =1082911a(5) =29384641a(6) =331247456

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