A056399 - OEIS

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A056399

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

0, 0, 0, 0, 1, 9, 26, 299, 1183, 10701, 24736, 349241, 626053, 6680979, 26364610, 137247254, 353304459, 4826418027, 8199440662, 93679529503, 315943737331, 1913783074461, 4382586624256, 60629067776483 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,6`
	COMMENTS	`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	`A056394(n)-A056393(n).`
	CROSSREFS	`Cf. A056379.` `Sequence in context: A055849 A084813 A056409 * A135864 A074954 A103952` `Adjacent sequences: A056396 A056397 A056398 * A056400 A056401 A056402`
	KEYWORD	`nonn`
	AUTHOR	`Marks R. Nester (nesterm(AT)dpi.qld.gov.au)`

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Last modified February 18 00:14 EST 2012. Contains 206085 sequences.