OFFSET
1,1
COMMENTS
These are the numbers 2x+1 and 3x as x ranges through the numbers in A325419.
LINKS
Clark Kimberling, Table of n, a(n) for n = 1..10000
MATHEMATICA
a = {1}; Do[AppendTo[a, NestWhile[# + 1 &, Last[a] + 1, Apply[Or,
Map[MemberQ[a, #] &, Select[Flatten[{#/3, (# - 1)/2}],
IntegerQ]]] &]], {150}]; a; (* A325419 *)
Complement[Range[Last[a]], a]; (* A325420 *)
(* Peter J. C. Moses, Apr 23 2019 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Apr 28 2019
STATUS
approved