A291166 - OEIS

A291166

Connected Haar graph numbers.

1, 3, 5, 6, 7, 9, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 33, 35, 37, 38, 39, 41, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Complement of A291165.

These appear to be numbers whose positions of 1's in their reversed binary expansion are relatively prime. If so, this sequence lists all positions of 1's in A326674. Numbers whose positions of 1's in their reversed binary expansion are pairwise coprime (as opposed to relatively prime) are A326675. - Gus Wiseman, Jul 19 2019

LINKS

Table of n, a(n) for n=1..70.

Eric Weisstein's World of Mathematics, Connected Graph

Eric Weisstein's World of Mathematics, Haar Graph

CROSSREFS

Cf. A000120, A029931, A048793, A059519, A070939, A289508, A291165, A295235, A319826, A326031, A326669, A326672, A326673.

Sequence in context: A165712 A325390 A296365 * A333228 A161373 A333227

Adjacent sequences: A291163 A291164 A291165 * A291167 A291168 A291169

KEYWORD

nonn

AUTHOR

Eric W. Weisstein, Aug 19 2017

STATUS

approved