This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A254436 #18 Apr 17 2016 11:41:42 %S A254436 0,0,0,0,0,0,1,0,1,0,1,1,2,1,2,1,4,3,6,3,6,5,8,7,10,7,12,9,14,11,16, %T A254436 14,19,17,22,20,28,23,31,26,34,32,40,35,43,38,51,46,59,51,64,61,74,71, %U A254436 84,76,94,86,104,96,114,108,126,120,138,132,157,146,171 %N A254436 A component sequence of A254296. %C A254436 This sequence is a component of the formula for counting A254296. %C A254436 If m=ceiling(log_3(2k)), define n=(3^(m-1)+1)/2+(3^(m-2))-k for k in the range (3^(m-1)+1)/2<=k<=(3^(m-1)-1)/2+(3^(m-2)). Then this sequence gives the first 3^(m-2) terms. %H A254436 Md. Towhidul Islam, <a href="/A254436/b254436.txt">Table of n, a(n) for n = 1..6561</a> %H A254436 Md Towhidul Islam & Md Shahidul Islam, <a href="http://arxiv.org/abs/1502.07730">Number of Partitions of an n-kilogram Stone into Minimum Number of Weights to Weigh All Integral Weights from 1 to n kg(s) on a Two-pan Balance</a>, arXiv:1502.07730 [math.CO], 2015. %F A254436 If m=ceiling(log_3(2k)), define n=(3^(m-1)+1)/2+(3^(m-2))-k for k in the range (3^(m-1)+1)/2<=k<=(3^(m-1)-1)/2+(3^(m-2)). %F A254436 Then a(n)=Sum_{d=ceiling((3k+2)/5)..(3^(m-1)-1)/2} Sum_{p=ceiling((d-1)/3..2d-k-1} A254296(p). %Y A254436 Cf. A254296, A254430, A254431, A254432, A254433, A254435, A254437, A254438, A254439, A254440. %K A254436 nonn %O A254436 1,13 %A A254436 _Md. Towhidul Islam_, Feb 28 2015