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A119911 Natural numbers with number of divisors not equal to a Lucas number. 1
12, 16, 18, 20, 24, 28, 30, 32, 36, 40, 42, 44, 45, 48, 50, 52, 54, 56, 60, 63, 66, 68, 70, 72, 75, 76, 78, 80, 81, 84, 88, 90, 92, 96, 98, 99, 100, 102, 104, 105, 108, 110, 112, 114, 116, 117, 120, 124, 126, 128, 130, 132, 135, 136, 138, 140, 144, 147, 148 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..59.

MATHEMATICA

With[{lnos=LucasL[Range[0, 20]]}, Select[Range[300], !MemberQ[ lnos, DivisorSigma[ 0, #]]&]] (* Harvey P. Dale, May 11 2014 *)

CROSSREFS

Complement to A119885.

Sequence in context: A189685 A126763 A058080 * A272861 A192690 A064499

Adjacent sequences:  A119908 A119909 A119910 * A119912 A119913 A119914

KEYWORD

easy,nonn

AUTHOR

Giovanni Teofilatto, Aug 02 2006

EXTENSIONS

More terms from Harvey P. Dale, May 11 2014

STATUS

approved

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Last modified February 18 02:20 EST 2018. Contains 299297 sequences. (Running on oeis4.)