In Pound-Star Notation, the Ter-astragol is equal to #*(10,10)*(10,10)*(10,10)*(10,10)*100. The name was coined by SuperJedi224.

Source: [1]

Notation Approximation
Scientific notation 10^{10^{10^{10^{308}}}}
Up-arrow notation 143\uparrow\uparrow4
Fast-growing hierarchy f_2(f_{2}(f_{2}(f_{2}(1015))))
Hardy hierarchy H_{\omega^{2}*4}(1015)
Slow-growing hierarchy g_{\omega^{\omega^{\omega^{\omega^{102}}}}}(1015)
Numbers By SuperJedi224

Fibonacci Numbers

Pound-Star Notation

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