User blog comment:P進大好きbot/Elementary Large Number/@comment-11227630-20190604040637/@comment-35470197-20190604112825

Since I created a \(1\)-ary function but not an ordinal notation, we needed to encode both ordinals and inputs to FGH. By my table, the code of \(0\) is \(1\) but not \(0\). Namely, the code of \(f_0(n)\) is \(2^n \times 1 = 2^n\). That is why only odd numbers appears in my table except the first line.