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 A368667 #9 Feb 11 2025 14:29:54 %S A368667 2,0,4,3,0,0,9,3,0,9,4,7,2,1,0,6,2,1,1,5,2,7,4,5,0,7,4,6,1,4,7,5,7,7, %T A368667 0,6,8,3,4,9,5,3,5,2,4,7,0,5,6,3,7,9,1,1,2,0,4,2,3,8,1,2,9,5,7,4,2,7, %U A368667 2,6,9,8,6,2,9,8,8,1,5,5,9,9,0,6,1,1,2,4,8,7,8,5,9,8,2,3,1,1,0,7 %N A368667 Decimal expansion of the probability that the T tetromino appears when the 4th cell is added in diffusion-limited aggregation on the square lattice. %C A368667 See A368660 for details. %H A368667 <a href="/index/Pol#polyominoes">Index entries for sequences related to polyominoes</a>. %H A368667 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>. %F A368667 Equals (286720 - 520576*Pi + 365408*Pi^2 - 125052*Pi^3 + 20982*Pi^4 - 1386*Pi^5)/(1204224 - 2114560*Pi + 1452608*Pi^2 - 490176*Pi^3 + 81507*Pi^4 - 5355*Pi^5). %F A368667 A368665 + A368666 + A368667 + A368668 + A368669 = 1. %e A368667 0.204300930947210621152745074614757706834953524705637911204238... %Y A368667 7th row of A368660. %Y A368667 Cf. A368665, A368666, A368668, A368669. %K A368667 nonn,cons %O A368667 0,1 %A A368667 _Pontus von Brömssen_, Jan 04 2024