User:Wythagoras/Rado's sigma function/BB(11,4)

\(\Sigma(12,4) > f_{\omega}(2050)\) 0 _ 3 l bb1 0 1 3 l 0 0 2 3 l 0 0 3 1 r 0 bb1 _ 3 r bb1 bb1 1 2 l bb1 bb1 2 2 l 8 bb1 3 3 r 0 0a _ 1 r 0a 0a 1 _ l 0a 0a 2 1 r 1 1 1 2 l 3 1 2 2 r 2 1 _ 1 r halt 2 _ 1 r halt 2 2 2 r 2 2 1 _ l 8 2 3 1 * 2 3 2 1 l 3 3 1 1 l 3 3 _ 1 l 0a 4 2 1 l 9 4 1 1 l 4 4 _ 2 r 6 6 1 1 r 6 6 2 2 * 4 7 1 1 l 7 7 2 2 l 7 7 _ 1 l 0a 8 3 2 l 8 8 _ 2 l 7 8 2 2 l 8 8 1 1 r 4 9 1 1 l 9 9 2 3 l 9 9 _ 2 r 10 10 _ 2 l 7 10 1 1 r 10 10 2 2 * 4 10 3 2 r 10

Explanation
The first part is the machine for \(\Sigma(2,4)\). It outputs: 3222...2223 (2048 2's) ^ It uses groups, the first group duplicates, the second group is comparable to \(2^n\), the third group is comparable to \(2\uparrow\uparrow n\), the fourth group is comparable to \(2\uparrow\uparrow\uparrow n\), etc. It uses LittlePeng9's duplication machine.