A197157 Number of one-sided poly-[3^3.4^2]-tiles (polyhouses) (holes allowed) with n cells.

1, 4, 8, 34, 106, 430, 1616, 6594, 26588, 110188, 457964, 1925498, 8135692, 34597729, 147780810

Offset

1,2

References

Branko Grünbaum and G. C. Shephard, Tilings and Patterns. W. H. Freeman, New York, 1987, Sections 2.7, 6.2 and 9.4.

Links

Table of n, a(n) for n=1..15.

Brendan Owen, Polyhouses (gives a(1)-a(10)).

Crossrefs

Cf. A197156, A197158.

Sequence in context: A149105 A149106 A149107 * A324410 A218628 A149108

Adjacent sequences: A197154 A197155 A197156 * A197158 A197159 A197160

Keyword

hard,nonn

Author

Joseph Myers, Oct 10 2011

Status

approved