id:A056480 - OEIS Search Results

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Number of primitive (aperiodic) palindromic structures using a maximum of six different symbols.

+0
3

1, 0, 1, 1, 4, 3, 14, 13, 50, 47, 202, 197, 875, 861, 4105, 4096, 20647, 20593, 109298, 109246, 601476, 601289, 3403126, 3402911, 19628059, 19627188, 114700263, 114699438, 676207627, 676203467, 4010090462 (list; graph; listen)

	OFFSET	`1,5`
	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	`Sum mu(d)*A056471(n/d) where d\|n.`
	CROSSREFS	`Cf. A056462.` `Sequence in context: A082383 A056478 A056479 this_sequence A095332 A120461 A113204` `Adjacent sequences: A056477 A056478 A056479 this_sequence A056481 A056482 A056483`
	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.

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