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 A290796 #13 Aug 12 2017 02:16:13 %S A290796 2,5,0,6,5,2,1,1,5,6,4,4,2,1,4,2,4,5,0,3,4,0,3,5,2,0,5,3,0,5,6,2,0,0, %T A290796 1,2,2,6,2,5,5,1,0,3,3,4,3,2,0,5,3,0,5,5,0,0,2,5,4,4,2,3,6,5,5,2,6,0, %U A290796 4,6,2,1,3,3,1,3,2,0,5,1,1,5,4,1,4,1,6,4 %N A290796 Coefficients in 7-adic expansion of sqrt(-3). %H A290796 Seiichi Manyama, <a href="/A290796/b290796.txt">Table of n, a(n) for n = 0..10000</a> %o A290796 (PARI) Vecrev(digits(lift(sqrt(-3+O(7^99))), 7)) %Y A290796 Cf. A290797, A290803. %K A290796 nonn %O A290796 0,1 %A A290796 _Seiichi Manyama_, Aug 10 2017