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A079250 Even numbers in A079000. 3

%I #11 Sep 04 2018 14:32:33

%S 4,6,8,16,18,20,34,36,38,40,42,44,70,72,74,76,78,80,82,84,86,88,90,92,

%T 142,144,146,148,150,152,154,156,158,160,162,164,166,168,170,172,174,

%U 176,178,180,182,184,186,188,286,288,290,292,294,296,298,300

%N Even numbers in A079000.

%H B. Cloitre, N. J. A. Sloane and M. J. Vandermast, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL6/Cloitre/cloitre2.html">Numerical analogues of Aronson's sequence</a>, J. Integer Seqs., Vol. 6 (2003), #03.2.2.

%H B. Cloitre, N. J. A. Sloane and M. J. Vandermast, <a href="http://arXiv.org/abs/math.NT/0305308">Numerical analogues of Aronson's sequence</a> (math.NT/0305308)

%F {4, 6, 8} and Union_{k >=1} {2i : 9*2^(k-1)-1 <= i <= 3*2^(k+1)-2 }.

%t (* b = A079000 *) b[1] = 1; b[n_] := (k = Floor[Log[2, (n + 3)/6]]; j = n - (9*2^k - 3); 12*2^k - 3 + 3*j/2 + Abs[j]/2);

%t Select[Array[b, 300], EvenQ] (* _Jean-François Alcover_, Sep 04 2018 *)

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Feb 04 2003

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