A366379 Numbers k such that A057889(k) != k (mod 3), where A057889 is the bijective bit-reverse.

11, 13, 22, 26, 35, 37, 41, 43, 44, 47, 49, 52, 53, 55, 59, 61, 70, 74, 82, 86, 88, 94, 98, 104, 106, 110, 118, 122, 131, 133, 137, 139, 140, 143, 145, 148, 149, 151, 155, 157, 161, 163, 164, 167, 169, 172, 173, 175, 176, 179, 181, 185, 187, 188, 191, 193, 196, 197, 199, 203, 205, 208, 209, 211, 212, 215, 217, 220

Offset

1,1

Links

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

Prog

(PARI)
A030101(n) = if(n<1, 0, subst(Polrev(binary(n)), x, 2));
A057889(n) = if(!n, n, A030101(n/(2^valuation(n, 2))) * (2^valuation(n, 2)));
isA366379(n) = (!!((A057889(n)-n)%3));

Crossrefs

Cf. A030101, A057889, A366378 (complement), A366389.

Subsequence of A001651, and of A057891.

Sequence in context: A351841 A257864 A248599 * A274243 A192931 A002367

Adjacent sequences: A366376 A366377 A366378 * A366380 A366381 A366382

Keyword

nonn

Author

Antti Karttunen, Oct 22 2023

Status

approved