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A037021 Greedy sequence such that no term is the average of four others. 0

%I

%S 0,1,2,3,5,7,13,26,27,28,29,31,122,123,124,125,127,129,135,148,149,

%T 150,151,153,610,611,612,613,615,617,623,636,637,638,639,641,732,733,

%U 734,735,737,739,745,758,759,760,761,763,3050,3051

%N Greedy sequence such that no term is the average of four others.

%D Related to R. K. Guy, Unsolved Problems in Number Theory, Section C16.

%H D. Tseng, <a href="https://www.emis.de/journals/INTEGERS/papers/l64/l64.Abstract.html">Generalized nonaveraging integer sequences</a>, Integers 12 (2012), no. 2, 275-300.

%F Terms are integers of the form 122A+R, where A has 0's and 1's in its base 5 expansion, and R is in the set {0, 1, 2, 3, 5, 7, 13, 26, 27, 28, 29, 31}. - _Dennis Tseng_, Jul 19 2013

%K nonn

%O 1,3

%A _John W. Layman_

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Last modified April 14 07:59 EDT 2021. Contains 342946 sequences. (Running on oeis4.)