The oktia (also called "fainega") is equal to M(flexinega,6) in Hyper-Moser notation. The number was invented by Aarex Tiaokhiao. In the up-arrow notation oktia is between \(2 \uparrow^6 (2 \uparrow^6 3)\) and \(2 \uparrow^6 (2 \uparrow^6 4)\).