A333746 Numbers k such that k, k+1 and k+2 have the same period of binary representation (A007733).

23284, 77906, 509737, 717817, 996601, 1132177, 1550377, 3264241, 3896546, 4326962, 4491362, 4542457, 5978857, 7097161, 8981977, 9628921, 10140386, 11098201, 11472337, 12078217, 12699122, 13335457, 14079577, 16795417, 17796146, 17807017, 18832082, 20221106, 21096146

Offset: 1

Author

Amiram Eldar, Apr 03 2020

Keywords

• nonn

Comments

Numbers k such that A007733(k) = A007733(k+1) = A007733(k+2).

Examples

			23284 is a term since A007733(23284) = A007733(23285) = A007733(23286) = 388.
		

Crossrefs

Cf. A007733, A333745.

Programs

Mathematica

f[n_] := MultiplicativeOrder[2, n/(2^IntegerExponent[n, 2])]; f1 = f[1]; f2 = f[2]; seq = {}; Do[f3 = f[n]; If[f1 == f2 && f2 == f3, AppendTo[seq, n-2]]; f1 = f2; f2 = f3, {n, 3, 10^6}]; seq