A213378 - OEIS

The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

A213378

Number of polyominoes of order 2n that can be tiled by dominoes in more than one way

0, 1, 3, 41, 499, 6946, 95964, 1330807, 18395673 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,3`
	COMMENTS	`Tilings related by a symmetry of the polyomino that is not a symmetry of the tiling count as distinct (thus, the square tetromino counts as being tiled in two distinct ways).`
	LINKS	`Table of n, a(n) for n=1..9.`
	CROSSREFS	`Cf. A056785, A056786, A213376, A213377.` `Sequence in context: A328509 A087544 A305667 * A189356 A155672 A073844` `Adjacent sequences: A213375 A213376 A213377 * A213379 A213380 A213381`
	KEYWORD	`hard,more,nonn`
	AUTHOR	`Joseph Myers, Jun 10 2012`
	STATUS	`approved`

Last modified April 9 01:44 EDT 2020. Contains 333339 sequences. (Running on oeis4.)