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 A059320 #7 Apr 20 2015 03:49:47 %S A059320 0,0,3,2,4,5,10,4,13,4,14,13,16,18,21,10,22,23,22,14,25,22,36,25,42, %T A059320 24,41,40,40,35,48,20,51,34,50,51,50,30,63,24,64,35,56,52,65,64,74,53, %U A059320 76,78,73,58,78,71,94,78,99,64,92,79,84,84,95,42,96,89,90,80,103,82,122 %N A059320 Number of 0's in row n of Pascal's rhombus mod 2. %H A059320 J. Goldwasser et al., <a href="http://dx.doi.org/10.1016/S0012-365X(98)00373-2">The density of ones in Pascal's rhombus</a>, Discrete Math., 204 (1999), 231-236. %H A059320 Paul K. Stockmeyer, <a href="http://arxiv.org/abs/1504.04404">The Pascal Rhombus and the Stealth Configuration</a>, arXiv:1504.04404 [math.CO], 2015. %Y A059320 Cf. A059317, A059318, A059319, A007318. %K A059320 easy,nonn %O A059320 0,3 %A A059320 _N. J. A. Sloane_, Jan 26 2001 %E A059320 More terms from Larry Reeves (larryr(AT)acm.org), Jan 30 2001