A325426 Complement of A325425.

2, 4, 6, 7, 10, 12, 13, 16, 18, 21, 22, 25, 28, 30, 34, 36, 38, 39, 40, 43, 46, 48, 49, 52, 54, 55, 58, 61, 62, 63, 64, 66, 67, 70, 74, 75, 76, 79, 82, 84, 85, 88, 90, 94, 97, 100, 102, 103, 106, 108, 109, 112, 114, 115, 117, 118, 120, 121, 124, 129, 130

Offset: 1

Author

Clark Kimberling, Apr 27 2019

Keywords

• nonn
• easy

Comments

These are the numbers 2x and floor(3x/2) as x ranges through the numbers x > 1 in A325425.

Links

• Clark Kimberling, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A325417, A325425.

Programs

Mathematica

a = {1}; Do[AppendTo[a, NestWhile[# + 1 &, Last[a] + 1, Apply[Or,
Map[MemberQ[a, #] &, Select[Flatten[{#/2,
If[Mod[#, 3] == 0, (2 #)/3, 0] + If[Mod[#, 3] == 1, 1/3 (1 + 2 #), 0]}],
IntegerQ || # == 0]]] &]], {150}]; a (* A325425 *)
Complement[Range[Last[a]], a];       (* A325426 *)
(* - Peter J. C. Moses, Apr 25 2019 *)