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A068191 Numbers n such that A067734(n)=0; complement of A002473; at least one prime-factor of n is larger than 7, it has 2 decimal digits. 17
11, 13, 17, 19, 22, 23, 26, 29, 31, 33, 34, 37, 38, 39, 41, 43, 44, 46, 47, 51, 52, 53, 55, 57, 58, 59, 61, 62, 65, 66, 67, 68, 69, 71, 73, 74, 76, 77, 78, 79, 82, 83, 85, 86, 87, 88, 89, 91, 92, 93, 94, 95, 97, 99, 101, 102, 103, 104, 106, 107, 109, 110, 111, 113, 114 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Also numbers n such that A198487(n) = 0 and A107698(n) = 0. - Jaroslav Krizek, Nov 04 2011

A086299(a(n)) = 0. - Reinhard Zumkeller, Apr 01 2012

A262401(a(n)) < a(n). - Reinhard Zumkeller, Sep 25 2015

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[Range@120, Last@Map[First, FactorInteger@#] > 7 &] (* Vincenzo Librandi, Sep 19 2016 *)

PROG

(Haskell)

import Data.List (elemIndices)

a068191 n = a068191_list !! (n-1)

a068191_list = map (+ 1) $ elemIndices 0 a086299_list

-- Reinhard Zumkeller, Apr 01 2012

CROSSREFS

Cf. A001222, A002473, A067734.

Cf. A068183, A068184, A068185, A068186, A068187, A068189, A068190.

Cf. A262401.

Sequence in context: A138708 A061116 A048388 * A191599 A084374 A063193

Adjacent sequences:  A068188 A068189 A068190 * A068192 A068193 A068194

KEYWORD

base,nonn

AUTHOR

Labos Elemer, Feb 19 2002

STATUS

approved

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Last modified February 23 06:42 EST 2020. Contains 332159 sequences. (Running on oeis4.)