id:A056465 - OEIS Search Results

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

+0
3

0, 0, 0, 0, 0, 0, 24, 24, 240, 240, 1560, 1560, 8400, 8376, 40824, 40800, 186480, 186240, 818520, 818280, 3497976, 3496440, 14676024, 14674440, 60780720, 60772320, 249401640, 249393480, 1016542800, 1016501736 (list; graph; listen)

	OFFSET	`1,7`
	REFERENCES	`M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia.`
	FORMULA	`sum mu(d)*A056455(n/d) where d\|n.`
	CROSSREFS	`Cf. A056460.` `Sequence in context: A122505 A103640 A004011 this_sequence A056455 A128378 A004513` `Adjacent sequences: A056462 A056463 A056464 this_sequence A056466 A056467 A056468`
	KEYWORD	`nonn,base`
	AUTHOR	`Marks R. Nester (nesterm(AT)dpi.qld.gov.au)`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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