id:A030225 - OEIS Search Results

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Number of n-celled polyhexes (hexagonal polyominoes) with bilateral symmetry.

+0
3

1, 1, 3, 4, 11, 17, 46, 75, 202, 341, 914, 1581, 4222, 7436, 19794, 35357, 93859, 169558, 449039, 818793 (list; graph; listen)

	OFFSET	`1,3`
	CROSSREFS	`A030225 = 2*A000228 - A006535.` `Adjacent sequences: A030222 A030223 A030224 this_sequence A030226 A030227 A030228` `Sequence in context: A026753 A027222 A026380 this_sequence A060285 A025079 A036652`
	KEYWORD	`nonn`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`
	EXTENSIONS	`More terms from Joseph Myers (jsm(AT)polyomino.org.uk), Sep 21 2002`

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Last modified May 15 13:16 EDT 2008. Contains 139641 sequences.