A213951 Number of free poly-IH16-tiles (holes allowed) with n cells

1, 2, 8, 24, 98, 418, 1846, 8378, 38776, 181482, 858387, 4091814, 19635210, 94749398

Offset

1,2

References

Branko Gruenbaum and G. C. Shephard, Tilings and Patterns. W. H. Freeman, New York, 1987, Sections 6.2 and 9.4.

Links

Table of n, a(n) for n=1..14.

Crossrefs

Cf. A212416.

Sequence in context: A357160 A362139 A060899 * A150665 A150666 A150667

Adjacent sequences: A213948 A213949 A213950 * A213952 A213953 A213954

Keyword

hard,more,nonn

Author

Joseph Myers, Jun 26 2012

Status

approved