

A056785


Number of polydominoes.


7




OFFSET

1,2


COMMENTS

From Vicher's table.
This counts the number of polyominoes of order 2n that can be tiled by dominoes in at least one way.  Joseph Myers, Jun 10 2012


LINKS

Table of n, a(n) for n=1..9.
M. Keller, Counting Polyforms
M. Vicher, Polyforms
Index entries for sequences related to dominoes


CROSSREFS

Cf. A056786, A213376, A213377, A213378.
Sequence in context: A099869 A265677 A221371 * A188404 A105747 A099692
Adjacent sequences: A056782 A056783 A056784 * A056786 A056787 A056788


KEYWORD

hard,more,nonn


AUTHOR

James A. Sellers, Aug 28 2000


EXTENSIONS

Edited by T. D. Noe, Apr 09 2009
Offset corrected and a(6)a(9) added by Joseph Myers, Jun 10 2012


STATUS

approved



