The triennet (also called trienn) is equal to \(\lbrace9,9,9\rbrace\) or \(9\lbrace9\rbrace9\) in BEAF or 9 undecated to 9.. The term
The triennet (also called trienn) is equal to \(\lbrace9,9,9\rbrace\) or \(9\lbrace9\rbrace9\) in BEAF or 9 undecated to 9.. The term was coined by Aarex Tiaokhiao. This is the ninth Ackermann number.
The name of this number is based on Greek prefixes tri- (three) 