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A118845 Numbers that have non-Brauer chains among their shortest addition chains. 2

%I

%S 13,19,21,25,26,29,31,37,38,39,41,42,47,49,50,52,53,55,57,58,59,61,62,

%T 63,69,71,73,74,75,76,78,79,81,82,84,87,89,91,93,94,95,97,98,100,101,

%U 103,104,105,106,107,109,110,111,113,114,115,116,117,118,121,122,123

%N Numbers that have non-Brauer chains among their shortest addition chains.

%C Indices of nonzero terms in A079302. See A079301 for the definition of a Brauer addition chain.

%H Giovanni Resta, <a href="http://www.numbersaplenty.com/ac/">Tables of Shortest Addition Chains</a>, computed by David W. Wilson.

%Y Cf. A118846 (corresponding counts of minimal non-Brauer chains), A079301 (number of minimal Brauer chains for n), A079302 (number of minimal non-Brauer chains for n), A118844 (numbers without shortest non-Brauer chains).

%K nonn

%O 1,1

%A _Hugo Pfoertner_, May 01 2006

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Last modified August 2 05:02 EDT 2021. Contains 346409 sequences. (Running on oeis4.)