A056458 - OEIS

This site is supported by donations to The OEIS Foundation.

A056458

Number of primitive (aperiodic) palindromes using a maximum of two different symbols.

2, 0, 2, 2, 6, 4, 14, 12, 28, 24, 62, 54, 126, 112, 246, 240, 510, 476, 1022, 990, 2030, 1984, 4094, 4020, 8184, 8064, 16352, 16254, 32766, 32484, 65534 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	REFERENCES	`M. R. Nester (1999). Mathematical investigations of some plant interaction designs. PhD Thesis. University of Queensland, Brisbane, Australia.`
	FORMULA	`Sum mu(d)*A016116(n/d+1) where d divides n.`
	CROSSREFS	`Sequence in context: A071055 A183034 A078052 * A046277 A053571 A129883` `Adjacent sequences: A056455 A056456 A056457 * A056459 A056460 A056461`
	KEYWORD	`nonn`
	AUTHOR	`Marks R. Nester (nesterm(AT)dpi.qld.gov.au)`

Content is available under The OEIS End-User License Agreement .

Last modified February 16 20:12 EST 2012. Contains 205962 sequences.