OFFSET
1,1
COMMENTS
These are the numbers 2x+1 and 3x+2 as x ranges through the numbers x > 1 in A325539.
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[{(# - 1)/2, (# - 2)/3}],
IntegerQ]]] &]], {200}]; a (* A325539 *)
Complement[Range[Last[a]], a] (* A325540 *)
(* Peter J. C. Moses, Apr 25 2019 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 07 2019
STATUS
approved