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 A160811 Numbers not dividing 24. 12

%I

%S 5,7,9,10,11,13,14,15,16,17,18,19,20,21,22,23,25,26,27,28,29,30,31,32,

%T 33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,

%U 56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77

%N Numbers not dividing 24.

%H Omar E. Pol, <a href="http://www.polprimos.com">Determinacion geometrica de los numeros primos y perfectos</a>

%H Omar E. Pol, <a href="http://www.polprimos.com/imagenespub/polprdipi.jpg">Divisors and pi(x)</a>

%H <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (2,-1).

%F a(n) = n + 8 for n > 16. [_Charles R Greathouse IV_, Oct 26 2011]

%o (PARI) is(n)=!!n%24 \\ _Charles R Greathouse IV_, Oct 26 2011

%Y Complement of A018253.

%Y Cf. A000005, A000720, A161205.

%K easy,nonn

%O 1,1

%A _Omar E. Pol_, Jun 19 2009, Jun 28 2009

%E Definition corrected by _Omar E. Pol_, Nov 17 2009

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Last modified August 22 22:22 EDT 2017. Contains 290952 sequences.