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A075203 Number of polyominoes with n cells that tile the plane by translation or by 180-degree rotation (Conway criterion). 10
1, 1, 2, 5, 12, 35, 101, 320, 961, 2703, 6174, 19905, 35060, 94614, 235381, 467754, 776873, 2498766, 3281990, 9917824, 18735749, 33417839, 52251279, 181365462, 239569893 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

REFERENCES

Branko Gr├╝nbaum and G. C. Shephard, Tilings and Patterns. W. H. Freeman, New York, 1987, Section 9.4.

LINKS

Table of n, a(n) for n=1..25.

Joseph Myers, Polyomino tiling

CROSSREFS

Cf. A054359, A075198, A075199, A075200, A075201, A075202, A075204, A075205, A075206, A075212, A075221.

Sequence in context: A266931 A148286 A075202 * A075205 A054359 A148287

Adjacent sequences:  A075200 A075201 A075202 * A075204 A075205 A075206

KEYWORD

hard,nonn

AUTHOR

Joseph Myers, Sep 08 2002

EXTENSIONS

More terms from Joseph Myers, Nov 04 2003

a(24) and a(25) from Joseph Myers, Nov 17 2010

STATUS

approved

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Last modified February 22 23:03 EST 2019. Contains 320411 sequences. (Running on oeis4.)