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A249372 Numbers k such that A156257(k) != A074292(k). 1

%I #28 Aug 06 2021 00:46:12

%S 47,48,56,57,128,129,137,139,147,148,176,177,182,183,185,187,188,190,

%T 192,194,195,196,197,199,201,202,203,205,207,209,210,211,212,214,218,

%U 220,222,223,227,229,230,232,233,235,237,238,239,240,242,244

%N Numbers k such that A156257(k) != A074292(k).

%C Related to the position and frequency of runs of length 2 in the Kolakoski sequence A000002. Possible values of the difference A156257 - A074292 are -1, 0, 1, and a 1 seems to be always followed soon by a -1, indicating that the two sequences A074292 and A156257 are not equal but rather close.

%H Jean-Christophe Hervé, <a href="/A249372/b249372.txt">Table of n, a(n) for n = 1..49383</a>

%Y Cf. A000002, A074292, A156257, A247176 (values of the difference).

%K nonn

%O 1,1

%A _Jean-Christophe Hervé_, Nov 22 2014

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)