A325422 - OEIS

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A325422

Complement of A077477.

3, 4, 5, 7, 13, 17, 19, 21, 23, 25, 28, 29, 31, 33, 34, 37, 41, 43, 45, 46, 49, 53, 55, 61, 65, 67, 71, 73, 77, 79, 81, 82, 85, 89, 91, 95, 97, 101, 103, 105, 106, 109, 113, 115, 117, 118, 119, 121, 125, 127, 129, 133, 137, 139, 141, 142, 145, 149, 151, 153

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

These are the numbers 2x + 1 and 3x + 1 as x ranges through the numbers in A077477.

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)/3, (# - 1)/2}],

IntegerQ]]] &]], {150}]; a; (* A077477 *)

Complement[Range[Last[a]], a]; (* A325422 *)