Number of perfect matchings in triangle graph with n nodes per side as n runs through numbers congruent to 0 or 3 mod 4.

A071093

Number of perfect matchings in triangle graph with n nodes per side as n runs through numbers congruent to 0 or 3 mod 4.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =2196a(4) =37004a(5) =2317631400a(6) =216893681800

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