

A125756


Numbers n whose reverse binary representation has the following property: let a 0 mean "halving" and a 1 mean "k > 3k+1". The number describes an operation k > f_n(k). If the equation f_n(k) = k has a positive integer solution, n is a term in the sequence.


4



4, 36, 140, 145, 200, 292, 1059, 1136, 1553, 1800, 2340, 4150, 4274, 4297, 4308, 4389, 4433, 4490, 4634, 4696, 4705, 4741, 4804, 4876, 5133, 5164, 5218, 5254, 5400, 5409, 5668, 5712, 5761, 6244, 6290, 6312, 6448, 6466, 6662, 6800, 6976
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OFFSET

1,1


COMMENTS

Note that f_n(x) is always a linear function of x.


LINKS



CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



