A032583 Numbers which are neither prime nor lucky.

4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 27, 28, 30, 32, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 50, 52, 54, 55, 56, 57, 58, 60, 62, 64, 65, 66, 68, 70, 72, 74, 76, 77, 78, 80, 81, 82, 84, 85, 86, 88, 90, 91, 92, 94, 95, 96, 98, 100, 102, 104, 106, 108

Offset

1,1

Comments

Except for 2, sequence includes all positive even integers. First odd term is 27. - Alonso del Arte, Jun 20 2017

Links

Table of n, a(n) for n=1..65.

Mathematica

(* First run one of the programs for A000959 to define the list luckies *) max = 200; Complement[Range[max], Prime[Range[PrimePi[max]]], luckies] (* Alonso del Arte, Jun 14 2017 *)

Crossrefs

Cf. A000040, A000959, A032584, A031157.

Sequence in context: A054023 A330948 A324705 * A175074 A063127 A272651

Adjacent sequences: A032580 A032581 A032582 * A032584 A032585 A032586

Keyword

nonn

Author

Patrick De Geest, Apr 15 1998

Status

approved