Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #27 May 13 2024 23:15:57
%S 15,23,27,30,31,39,43,45,46,47,51,54,55,59,60,61,62,63,75,77,78,79,83,
%T 85,86,87,90,91,92,93,94,95,99,102,103,107,108,109,110,111,115,117,
%U 118,119,120,121,122,123,124,125,126,127,135,143,147,149,150,151,153,154,155
%N Integers k such that the number of multiplications to compute the k-th power by the Chandah-sutra method (A014701) is larger than the length of the shortest addition chain for k (A003313).
%C All terms have a binary weight A000120(k) >= 4.
%H Szymon Lukaszyk, <a href="/A371894/b371894.txt">Table of n, a(n) for n = 1..8876</a>
%Y Cf. A003313, A014701, A000120.
%K nonn
%O 1,1
%A _Szymon Lukaszyk_, Apr 11 2024