A316535 - OEIS

A316535

Number of domino tilings (or dimer coverings) of a 2n X 2n square not counting reflections and rotations.

1, 1, 9, 930, 1629189, 32324350352, 6632560613086062, 14025276099356126574624, 305611096281378760240051639364, 68617947901923542714137396006469280000, 158748001407029479280360099562172057138013219144, 3784212561528950376893775523091796640110288722110632534528

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OFFSET

0,3

COMMENTS

This is the sequence A004003 after removing rotations and reflections. The corresponding terms of A004003 are: 1, 2, 36, 6728, ... .

REFERENCES

References cited in A004003.

LINKS

Table of n, a(n) for n=0..11.

S. D. Lord, GFortran program computes up to 2n=8.

S. D. Lord, GFortran program computes up to 2n=10.

CROSSREFS