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 A290797 #9 Aug 14 2017 04:57:38 %S A290797 5,1,6,0,1,4,5,5,1,0,2,2,4,5,2,4,2,1,6,3,2,6,3,1,4,6,1,3,6,1,0,4,6,6, %T A290797 5,4,4,0,4,1,1,5,6,3,3,2,3,4,6,1,3,6,1,1,6,6,4,1,2,2,4,3,0,1,1,4,0,6, %U A290797 2,0,4,5,3,3,5,3,4,6,1,5,5,1,2,5,2,5,0,2 %N A290797 Coefficients in 7-adic expansion of sqrt(-3). %F A290797 a(n) = 6 - A290796(n) for n > 0. %Y A290797 Cf. A290796, A290804. %K A290797 nonn %O A290797 0,1 %A A290797 _Seiichi Manyama_, Aug 10 2017