id:A070167 - OEIS Search Results

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a(n) is the smallest starting value a0 which produces a Collatz sequence in which n occurs.

+0
2

1, 2, 3, 3, 3, 6, 7, 3, 9, 3, 7, 12, 7, 9, 15, 3, 7, 18, 19, 7, 21, 7, 15, 24, 25, 7, 27, 9, 19, 30, 27, 21, 33, 7, 15, 36, 37, 25, 39, 7, 27, 42, 43, 19, 45, 15, 27, 48, 43, 33, 51, 7, 15, 54, 55, 37, 57, 19, 39, 60, 27, 27, 63, 21, 43, 66, 39, 45, 69, 15, 27, 72, 73, 43, 75, 25 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..10000` `Eric Weisstein's World of Mathematics, Collatz Sequence` `Index entries for sequences related to 3x+1 (or Collatz) problem`
	CROSSREFS	`Cf. A006667, A070165.` `Sequence in context: A115206 A093653 A049982 this_sequence A141479 A055081 A109833` `Adjacent sequences: A070164 A070165 A070166 this_sequence A070168 A070169 A070170`
	KEYWORD	`nonn`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com), Apr 23, 2002`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

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