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 A259964 #5 Jul 11 2015 13:25:21 %S A259964 1,2,4,8,13,21,31,45,66,81,97,123,148,182,229,257,290,312,381,419,467, %T A259964 507,621,721,770,864,927,1050,1178,1289,1457,1561,1615,1774,1907,2090, %U A259964 2164,2263,2309,2539,2800,2938,3035,3310,3380,3738,4043,4239,4439,4726,4851,5016,5169,5289,5490,5760,6646,6843,7015,7442,7674,7986,8284,8506,8772,9240,9778,9996,10344,10431,11614,12263 %N A259964 A specially constructed B_2 sequence with sum of reciprocals greater than that of the Mian-Chowla sequence A005282. %C A259964 Constructed using the greedy algorithm (as for A005252) except at 15th term, which is 229. %C A259964 It had been conjectured that the sum of reciprocals for B_2 sequences was maximized by A005282. This sequence gives a counterexample. %H A259964 Zhang Zhen-Xiang, <a href="http://dx.doi.org/10.1090/S0025-5718-1993-1181334-7">A B_2-sequence with larger reciprocal sum</a>, Math. Comp. 60 (1993), 835-839. %Y A259964 Cf. A005282. %K A259964 nonn %O A259964 1,2 %A A259964 _N. J. A. Sloane_, Jul 11 2015