id:A072260 - OEIS Search Results

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((6n+19)*4^n-1)/3.

+0
6

6, 33, 165, 789, 3669, 16725, 75093, 333141, 1463637, 6378837, 27612501, 118838613, 508908885, 2169853269, 9216283989, 39012619605, 164640413013, 692921390421, 2909124515157 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Related to Collatz function (for n>0). All divisible by 3.`
	CROSSREFS	`Cf. A072257, A072258, A072259.` `Adjacent sequences: A072257 A072258 A072259 this_sequence A072261 A072262 A072263` `Sequence in context: A074087 A022730 A099432 this_sequence A084153 A086314 A086091`
	KEYWORD	`nonn`
	AUTHOR	`rathankar (rathankar(AT)yahoo.com), Jul 08 2002`
	EXTENSIONS	`Edited and extended by Henry Bottomley (se16(AT)btinternet.com), Aug 06 2002`

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Last modified October 12 13:44 EDT 2008. Contains 144830 sequences.

AT&T Labs Research