id:A056483 - OEIS Search Results

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

+0
2

0, 0, 0, 0, 0, 0, 1, 1, 10, 10, 65, 65, 350, 349, 1701, 1700, 7770, 7760, 34105, 34095, 145749, 145685, 611501, 611435, 2532530, 2532180, 10391735, 10391395, 42355950, 42354239, 171798901 (list; graph; listen)

	OFFSET	`1,9`
	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	`A056478(n)-A056477(n).`
	CROSSREFS	`Cf. A056465.` `Sequence in context: A003875 A111220 A106789 this_sequence A056473 A165831 A102377` `Adjacent sequences: A056480 A056481 A056482 this_sequence A056484 A056485 A056486`
	KEYWORD	`nonn`
	AUTHOR	`Marks R. Nester (nesterm(AT)dpi.qld.gov.au)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research