A072252 - OEIS

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A072252

Numbers n for which one step of the Collatz iteration (3n+1)/2^r gives rise to values 41,35,29,23,17,11, and 5 for r=1,3,5,..,13.

27, 93, 309, 981, 2901, 7509, 13653 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	FORMULA	`Appears to be (( 82-12n)4^n-1)/3. - Don Reble (djr(AT)nk.ca), Oct 31 2005`
	CROSSREFS	`Sequence in context: A044595 A101100 A078183 * A154041 A118615 A197619` `Adjacent sequences: A072249 A072250 A072251 * A072253 A072254 A072255`
	KEYWORD	`nonn,fini,full`
	AUTHOR	`N. Rathankar (rathankar(AT)yahoo.com), Jul 08 2002`
	EXTENSIONS	`Edited by T. D. Noe (noe(AT)sspectra.com), Apr 10 2009`

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Last modified February 17 06:27 EST 2012. Contains 205998 sequences.