## FANDOM

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Tetradecation refers to the 14th hyperoperation starting from addition. It is equal to $$a \uparrow^{12}b$$ in Knuth's up-arrow notation.[1]

Tetradecation can be written in array notation as $$\{a,b,12\}$$, in chained arrow notation as $$a \rightarrow b \rightarrow 12$$.

Tetradecational growth rate is equivalent to $$f_8(n)$$ in the fast-growing hierarchy.