Upper Factorial

The upper factorialhttps://jovanovmaksim.wixsite.com/max-s-googology/upper-factorial Accessed 2024-09-14 is a variant of the factorial. The definition is to multiply n by every integer to the sum of itself. It is denoted by \(!n\). The idea was coined by user MaximusSuperX.
== Example ==
The upper factorial of 1 would be written as this and would be equal to: !1 = 2 = 1(1 + 1) This is because we get the sum of one and itself by adding them. 1 + 1 = 2. We then multiply 1 up to 2 which would be 1 x 2 = 2.
=== Other Values ===
* !2 = 24 = 2(3)(4)
* !3 = 360 = 3(4)(5)(6)
* !4 = 6720 = 4(5)(6)(7)(8)
* !5 = 151200 = 5(6)(7)(8)(9)(10)
* !6 = 3991680 = 6(7)(8)(9)(10)(11)(12)
* !7 = 121080960 = 7(8)(9)(10)(11)(12)(13)(14)
* !8 = 4151347200 = 8(9)(10)(11)(12)(13)(14)(15)(16)
* !9 = 158789030400 = 9(10)(11)(12)(13)(14)(15)(16)(17)(18)
* !10 = 6704425700000 = 10(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)
* As you can see, the numbers get large fast.
== Sources ==
Category:Factorials
Category:Functions