%I #9 Jan 10 2024 23:54:27
%S 4,2,6,4,9,3,9,5,7,5,0,1,3,0,4,8,7,0,1,8,5,8,4,2,5,6,1,2,8,9,1,4,8,8,
%T 2,2,0,0,6,1,8,5,2,0,5,6,5,6,7,3,3,6,5,4,8,1,6,8,9,5,6,4,9,2,5,1,3,6,
%U 5,0,2,9,5,1,1,1,4,9,7,0,3,2,9,9,6,9,9,8,8,2,9,3,6,0,5,5,1,4,9,0
%N Decimal expansion of the probability that the L tetromino appears when the 4th cell is added in diffusion-limited aggregation on the square lattice.
%C See A368660 for details.
%H <a href="/index/Pol#polyominoes">Index entries for sequences related to polyominoes</a>.
%F Equals (4644864 - 9252864*Pi + 7592128*Pi^2 - 3288992*Pi^3 + 794310*Pi^4 - 101490*Pi^5 + 5364*Pi^6)/(19267584 - 39854080*Pi + 33814528*Pi^2 - 15105856*Pi^3 + 3754992*Pi^4 - 493215*Pi^5 + 26775*Pi^6).
%F A368665 + A368666 + A368667 + A368668 + A368669 = 1.
%e 0.426493957501304870185842561289148822006185205656733654816895...
%Y 5th row of A368660.
%Y 4th row of A368662.
%Y Cf. A368666, A368667, A368668, A368669.
%K nonn,cons
%O 0,1
%A _Pontus von Brömssen_, Jan 04 2024