id:A008876 - OEIS Search Results

Search: id:A008876

Displaying 1-1 of 1 results found.

page 1

3x+1 sequence starting at 81.

+0
1

81, 244, 122, 61, 184, 92, 46, 23, 70, 35, 106, 53, 160, 80, 40, 20, 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 (list; graph; listen)

	OFFSET	`0,1`
	REFERENCES	`R. K. Guy, Unsolved Problems in Number Theory, E16.`
	LINKS	`Index entries for sequences related to 3x+1 (or Collatz) problem`
	MAPLE	`f := proc(n) option remember; if n = 0 then 81; elif f(n-1) mod 2 = 0 then f(n-1)/2 else 3*f(n-1)+1; fi; end;`
	CROSSREFS	`Sequence in context: A044794 A062532 A075730 this_sequence A031456 A045009 A044986` `Adjacent sequences: A008873 A008874 A008875 this_sequence A008877 A008878 A008879`
	KEYWORD	`nonn`
	AUTHOR	`njas`

page 1

Search completed in 0.002 seconds

Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

AT&T Labs Research