User blog comment:Bubby3/The Great Googology Todo List/@comment-35851058-20190526222818

I feel like googologists haven’t been doing anything meaningful or important lately. How about my function? Its called the substring function. S(n) is defined as the sum of the digit substrings of n. For example, S(123) = 1 + 2 + 3 + 12 + 23 + 123 = 164. There is a page for this function on googologyforeveryone wiki