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 A309447 #12 Aug 17 2019 05:06:53 %S A309447 2,1,2,1,0,4,5,2,2,1,6,6,1,1,6,3,6,5,1,0,2,6,4,1,4,6,5,3,2,3,1,3,5,6, %T A309447 3,1,3,5,3,0,1,5,2,0,2,2,5,2,2,0,4,0,0,6,2,1,6,0,0,0,5,1,6,6,0,0,3,5, %U A309447 3,3,0,5,6,2,4,3,1,0,2,2,3,6,6,4,6,3,4,5,6,1,5,2,4,0,1,1,3,4,3,6 %N A309447 Coefficients in 7-adic expansion of 4^(1/5). %H A309447 Seiichi Manyama, <a href="/A309447/b309447.txt">Table of n, a(n) for n = 0..10000</a> %o A309447 (PARI) Vecrev(digits(truncate((4+O(7^100))^(1/5)), 7)) %Y A309447 Cf. A309452. %Y A309447 Digits of p-adic integers: %Y A309447 A309445 (7-adic, 2^(1/5)); %Y A309447 A309446 (7-adic, 3^(1/5)); %Y A309447 A309448 (7-adic, 5^(1/5)); %Y A309447 A309449 (7-adic, 6^(1/5)). %K A309447 nonn,base %O A309447 0,1 %A A309447 _Seiichi Manyama_, Aug 03 2019