Superfactorial 4$=4!3!2!1!
Sign up for a free account at https://brilliant.org/blackpenredpen/ and starting learning today . You can also get a 20% off discount for their annual premium subscription. Support this channel and get more content 👉 / blackpenredpen Hyperfactorial, • Hyperfactorial introduction Note: on Wikipedia, it uses sf(n) for the Sloane and plouffe’s definition of the super factorial. But here it uses n$ for both http://mathworld.wolfram.com/Superfac...
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