login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A325530 Difference sequence of A325440. 3
2, 1, 2, 3, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 2, 4, 2, 2, 1, 1, 2, 1, 3, 2, 3, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 3, 2, 2, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 2, 4, 2, 2, 1, 1, 2, 1, 3, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 1, 3, 2, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
See A325417 for a guide to related sequences. Conjecture: every term is in {1,2,3,4}.
LINKS
MATHEMATICA
a = {1}; Do[AppendTo[a, NestWhile[# + 1 &, Last[a] + 1, Apply[Or,
Map[MemberQ[a, #] &, Select[Flatten[{(#+1)/2, (#+1)/3}],
IntegerQ]]] &]], {20000}]; a; (* A315440 *)
c = Complement[Range[Last[a]], a] ; (* A325441 *)
Differences[a] (* A325530 *)
Differences[c] (* A325531 *)
(* Peter J. C. Moses, Apr 23 2019 *)
CROSSREFS
Sequence in context: A080382 A349203 A106394 * A171712 A091412 A106036
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 07 2019
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)