id:A056479 - OEIS Search Results

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

+0
4

1, 0, 1, 1, 4, 3, 14, 13, 50, 47, 201, 196, 854, 840, 3839, 3830, 18001, 17947, 86471, 86419, 421989, 421803, 2079474, 2079260, 10306747, 10305897, 51263890, 51263086, 255514354, 255510460, 1275163904 (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)*A056470(n/d) where d\|n.`
	CROSSREFS	`Cf. A056461.` `Sequence in context: A140884 A082383 A056478 this_sequence A056480 A095332 A120461` `Adjacent sequences: A056476 A056477 A056478 this_sequence A056480 A056481 A056482`
	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