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

2, 5, 6, 8, 10, 11, 13, 14, 17, 18, 20, 21, 22, 23, 24, 26, 27, 29, 30, 32, 34, 35, 37, 38, 40, 41, 42, 43, 44, 45, 46, 47, 49, 50, 52, 53, 54, 55, 56, 58, 59, 61, 62, 65, 66, 68, 69, 70, 71, 72, 74, 75, 77, 78, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93

Offset

1,1

Links

Table of n, a(n) for n=1..68.

Lukasz Merta, Composition inverses of the variations of the Baum-Sweet sequence, arXiv:1803.00292 [math.NT], 2018. See h(n) p. 23.

Prog

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

Crossrefs

Complement of A060142. Cf. A086747.

Sequence in context: A154329 A176590 A253061 * A087943 A034020 A187476

Adjacent sequences: A320727 A320728 A320729 * A320731 A320732 A320733

Keyword

nonn

Author

Michel Marcus, Oct 20 2018

Status

approved