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A161447 Numbers n such that A160700(n) = 7. 18

%I #4 Jan 25 2018 10:01:30

%S 7,22,37,52,67,82,97,112,143,158,173,188,203,218,233,248,262,279,292,

%T 309,322,339,352,369,398,415,428,445,458,475,488,505,517,532,551,566,

%U 577,592,611,626,653,668,687,702,713,728,747,762,772,789,806,823,832

%N Numbers n such that A160700(n) = 7.

%H Charles R Greathouse IV, <a href="/A161447/b161447.txt">Table of n, a(n) for n = 1..10000</a>

%F 16n - 16 <= a(n) <= 16n - 1. - _Charles R Greathouse IV_, Jan 25 2018

%o (PARI) A160700(n)=my(t=n%16); while(n>15, n>>=4; t=bitxor(t, n%16)); t

%o a(n)=for(k=16*n-16, 16*n-1, if(a(k)==7, return(k))) \\ _Charles R Greathouse IV_, Jan 25 2018

%Y Cf. A161440, A161441, A161442, A161443, A161444, A161445, A161446, A161448, A161449, A161450, A161451, A161452, A161453, A161454, A161455.

%K nonn,easy

%O 1,1

%A _Reinhard Zumkeller_, Jun 10 2009

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Last modified July 25 10:27 EDT 2024. Contains 374587 sequences. (Running on oeis4.)