id:A056482 - OEIS Search Results

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Number of primitive (aperiodic) palindromic structures using exactly three different symbols.

+0
2

0, 0, 0, 0, 1, 1, 6, 6, 25, 24, 90, 89, 301, 295, 965, 960, 3025, 2999, 9330, 9305, 28495, 28411, 86526, 86430, 261624, 261324, 788945, 788669, 2375101, 2374110, 7141686 (list; graph; listen)

	OFFSET	`1,7`
	COMMENT	`Permuting the symbols will not change the structure.`
	REFERENCES	`M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia.`
	FORMULA	`A056477(n)-A056476(n).`
	CROSSREFS	`Cf. A056464.` `Sequence in context: A053168 A087236 A077193 this_sequence A123874 A016725 A066714` `Adjacent sequences: A056479 A056480 A056481 this_sequence A056483 A056484 A056485`
	KEYWORD	`nonn`
	AUTHOR	`Marks R. Nester (nesterm(AT)dpi.qld.gov.au)`

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Last modified September 5 19:27 EDT 2008. Contains 143485 sequences.

AT&T Labs Research