id:A055510 - OEIS Search Results

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Largest odd prime in sequence obtained in 3x+1 (or Collatz) problem starting at n, or 0 if no such prime is found.

+0
2

0, 0, 5, 0, 5, 5, 17, 0, 17, 5, 17, 5, 13, 17, 53, 0, 17, 17, 29, 5, 0, 17, 53, 5, 29, 13, 1619, 17, 29, 53, 1619, 0, 29, 17, 53, 17, 37, 29, 101, 5, 1619, 0, 43, 17, 17, 53, 1619, 5, 37, 29, 29, 13, 53, 1619, 1619, 17, 43, 29, 101, 53, 61, 1619, 1619, 0, 37, 29, 101, 17, 13 (list; graph; listen)

	OFFSET	`1,3`
	LINKS	`Index entries for sequences related to 3x+1 (or Collatz) problem` `Eric Weisstein's World of Mathematics, Collatz Problem`
	CROSSREFS	`Cf. A055509.` `Sequence in context: A091672 A144702 A156716 this_sequence A154814 A055953 A165051` `Adjacent sequences: A055507 A055508 A055509 this_sequence A055511 A055512 A055513`
	KEYWORD	`nonn`
	AUTHOR	`G. L. Honaker, Jr. (honak3r(AT)gmail.com), Jun 30 2000`
	EXTENSIONS	`More terms from Larry Reeves (larryr(AT)acm.org), Aug 09 2001`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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