id:A056396 - OEIS Search Results

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Number of step shifted (decimated) sequence structures using exactly two different symbols.

+0
1

0, 1, 2, 5, 5, 19, 13, 47, 51, 139, 107, 623, 351, 1399, 2171, 4463, 4115, 22111, 14601, 68015, 88375, 209935, 190745, 1075199, 839127, 2796999, 3730583, 11276703, 9587579, 67195519, 35792567 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`See A056371 for an explanation of step shifts. 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	`A056391(n)-1.`
	CROSSREFS	`Cf. A056376.` `Sequence in context: A014442 A082534 A140600 this_sequence A085043 A073339 A074636` `Adjacent sequences: A056393 A056394 A056395 this_sequence A056397 A056398 A056399`
	KEYWORD	`nonn`
	AUTHOR	`Marks R. Nester (nesterm(AT)dpi.qld.gov.au)`

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Last modified September 5 01:44 EDT 2008. Contains 143476 sequences.

AT&T Labs Research