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Tetdecatrix is equal to $$\lbrace 10,10,10,10 \rbrace\ \&\ 10$$ using the array of operator and BEAF.[1] It has general entries. The term was coined by Jonathan Bowers.

Cookie Fonster calls this number generatrix.[2]

## Approximations

Since it is not defined by now, the following approximation is just an expected value under climbing method (strong bound):

Notation Approximation
Bird's array notation {10,10[1[2¬4]2]2}
Fast-growing hierarchy $$f_{\varphi(9,\omega,0,0)}(10)$$
Hardy hierarchy $$H_{\varphi(9,\omega,0,0)}(10)$$

## Sources

1. Bowers, JonathanInfinity Scrapers. Retrieved June 12, 2016.
2. Pointless Gigantic List of Numbers - Part 6: The Mighty RoyalsPointless Large Number Stuff. Retrieved 2017-05-21.