What is Tetrahedral Number?
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The {n}th tetrahedral number is the sum of the first n Triangular numbers. Triangular numbers are the sum of the first n integers (1, 3, 6, 10, 15, etc.), and taking the sum of the triangular numbers results in the tetrahedral numbers (1, 4, 10, 20, 35, etc.)
The fifth tetrahedral number is the sum of the first five triangular numbers. The first five triangular numbers are 1, 3=1+2, 6=1+2+3, 10=1+2+3+4, and 15=1+2+3+4+5, so the sum of these numbers is 1+3+6+10+15= 35.
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Random Words:
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noun. Decaying human feeces.
Oh boy, I just stepped in some damn bleepstreet!
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BLEEPYSTREETY (can be found in #shugashack on etg)..
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When your heart actually ceases to love, its a horrible thing that no one should feel and should never be caused!!
But it still happens..
