A033478 - OEIS

This site is supported by donations to The OEIS Foundation.

A033478

3x+1 sequence beginning at 3.

3, 10, 5, 16, 8, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, 4, 2, 1 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,1`
	REFERENCES	`C. A. Pickover, The Math Book, Sterling, NY, 2009; see p. 374.`
	LINKS	`Index entries for sequences related to 3x+1 (or Collatz) problem`
	MAPLE	`f:=proc(n) if n mod 2 = 0 then n/2 else 3*n+1; fi; end; g:=proc(n) local i, t1; t1:=[n]; for i from 1 to 120 do t1:=[op(t1), f(t1[nops(t1)])]; od; t1; end; g(3);`
	CROSSREFS	`Sequence in context: A100984 A045985 A035411 * A111127 A140948 A068489` `Adjacent sequences: A033475 A033476 A033477 * A033479 A033480 A033481`
	KEYWORD	`nonn`
	AUTHOR	`Jeff Burch (jmburch(AT)osprey.smcm.edu)`

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

Last modified February 15 05:38 EST 2012. Contains 205694 sequences.