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A372100 a(n) = 2*A000120(3^k) - A070939(3^k) with k = A372099(n). 4

%I #6 May 02 2024 17:34:10

%S 1,2,3,4,8,17,23,29,38,39,44,56,57,58,91,114,145,147,156,168,182,208,

%T 219,239,277,297,300,307,331,360,367,442,452,477,487,492,507,513,568,

%U 571,614,893,963,1275,1283,1288,1440,1563,1702,1957,2019,2440,2471,2566,3004

%N a(n) = 2*A000120(3^k) - A070939(3^k) with k = A372099(n).

%C a(n)/2 are the differences at supporting points ​​of the upper envelope of the scatter band of the deviation of the binary weight of 3^k from half the length of the corresponding binary number.

%H Hugo Pfoertner, <a href="/A372100/b372100.txt">Table of n, a(n) for n = 1..96</a>

%Y Cf. A000120, A000244, A011754, A070939, A078839, A372097, A372098, A372099.

%K nonn

%O 1,2

%A _Hugo Pfoertner_, Apr 25 2024

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Last modified July 7 14:58 EDT 2024. Contains 374106 sequences. (Running on oeis4.)