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A320730 Integers k such that A086747(k) = 0, where A086747 is the Baum-Sweet sequence. 0

%I

%S 2,5,6,8,10,11,13,14,17,18,20,21,22,23,24,26,27,29,30,32,34,35,37,38,

%T 40,41,42,43,44,45,46,47,49,50,52,53,54,55,56,58,59,61,62,65,66,68,69,

%U 70,71,72,74,75,77,78,80,81,82,83,84,85,86,87,88,89,90,91,92,93

%N Integers k such that A086747(k) = 0, where A086747 is the Baum-Sweet sequence.

%H Lukasz Merta, <a href="https://arxiv.org/abs/1803.00292">Composition inverses of the variations of the Baum-Sweet sequence</a>, arXiv:1803.00292 [math.NT], 2018. See h(n) p. 23.

%o (PARI) bs(n)=if(n<3, n<2, if(n%2, bs(n\2), n%4==0&&bs(n/4))); \\ A086747

%o isok(n) = bs(n) == 0;

%Y Complement of A060142. Cf. A086747.

%K nonn

%O 1,1

%A _Michel Marcus_, Oct 20 2018

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Last modified September 27 07:44 EDT 2021. Contains 347673 sequences. (Running on oeis4.)