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 A317675 #19 Aug 22 2019 06:23:46 %S A317675 1,1,1,2,2,0,1,0,1,1,0,1,2,0,2,2,2,0,0,1,1,1,1,1,0,1,1,1,2,1,2,2,2,0, %T A317675 1,2,0,1,1,0,0,2,2,1,1,2,1,0,1,2,0,1,1,1,2,0,2,2,2,0,1,0,2,0,0,1,2,2, %U A317675 0,0,1,2,0,0,2,1,1,1,0,2,2,1,1,1,0,1,1,0,0,0,0,1,2,1,2,0,0,0,1 %N A317675 Coefficients of 3-adic expansion of exp(3). %H A317675 Robert Israel, <a href="/A317675/b317675.txt">Table of n, a(n) for n = 0..10000</a> %H A317675 Wikipedia, <a href="https://en.wikipedia.org/wiki/P-adic_exponential_function">p-adic exponential</a> %e A317675 exp(3) = 1 + 3 + 9/2 + 9/2 + 27/8 + ... = 1 + 3 + 3^2 + 2*3^3 + O(3^4). %p A317675 R:= evalp(exp(3),3,200): %p A317675 op([1,3],R); %o A317675 (PARI) N=100; Vecrev(digits(lift(exp(3+O(3^N))), 3), N) \\ _Seiichi Manyama_, Aug 20 2019 %Y A317675 Cf. A091933, A309866. %K A317675 nonn,base %O A317675 0,4 %A A317675 _Robert Israel_, Aug 03 2018