2317631400

Appears in sequences

• Number of perfect matchings in triangle graph with n nodes per side.at n=11A039907
• Number of perfect matchings in triangle graph with n nodes per side as n runs through numbers congruent to 0 or 3 mod 4.at n=5A071093
• Number of perfect matchings in the n X n X n triangular grid, reduced by the spire vertex if n mod 4 equals 1 or 2.at n=11A178446
• Number of ways to reciprocally link elements of an n X n X n triangular array with themselves or a neighbor, with no more than 1 elements linked to themselves.at n=10A271610